An automatic chicken coop door with a timer is a motorized opener that opens and closes your flock’s pop hole at clock times you set, so the birds get out at dawn and are locked in after dark without you walking out to the coop twice a day. Our team compared 8 of the most reviewed timer-equipped doors across sensor tech, power, opening size and cold-weather behaviour to find the ones worth installing.
Most people buy a timer door for one reason: the fifteen to twenty minutes between the last hen roosting and full dark is when raccoons, foxes, weasels and opossums start testing the coop. A timer closes that window every single night, and it keeps you out of the yard before sunrise in February. If you are still working through our automatic chicken coop door basics, this roundup goes one step further and ranks only the units that schedule on a clock.
One thing worth saying up front: the timer is the least interesting reason to buy any of these. The light sensor is what most keepers actually run day to day, and the timer is the backstop that fires when the sensor gets confused. We explain where that split matters below, and we also cover how to program the clock, which is the detail almost every other roundup skips.
Table of Contents
Top 3 Best Chicken Coop Doors with Timers for 2026
NyPots Solar Timer Door
- Timer
- light sensor and remote modes
- LCD programming screen
- 2000mAh battery
- no wiring
FarmLite IR Sensor Opener
- Infrared bird-in check before closing
- Timer or light sensor mode
- Sealed electronics
- 12V solar optional
JVR Screw-Rod Door
- Deadbolt-style screw-rod actuator
- Power-outage memory keeps schedule
- LCD timer to the exact minute
All 8 Timer Doors at a Glance (October 2026)
| Product | Specifications | Action |
|---|---|---|
| NyPots Solar Door Opener |
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Check Latest Price |
 RUN-CHICKEN T50 |
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| FarmLite Opener |
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| JVR Aluminum Door |
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 AsFrost Solar Door |
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 Omlet Autodoor |
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 OKKOBI Door Lite |
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Check Latest Price |
 Budsom Smart Timer Door |
|
Check Latest Price |
1. NyPots Solar Door Opener with Timer and Light Sensor
NyPots Automatic Chicken Coop Door Solar Powered with Timer & Light Sensor
Solar plus 2000mAh battery
Timer, light and remote modes
LCD screen
-26C to 60C
Pros
- Timer
- light sensor and remote modes give flexible scheduling
- Solar and a 2000mAh internal battery remove battery swaps
- Large LCD makes programming open and close times straightforward
- Aluminum alloy and ABS body rated down to -26C
- Installs in about ten minutes with the included screws
Cons
- 8.2 x 9.6 inch opening rules out turkeys
- Recommended only for poultry under 10 lbs
This is the door we kept coming back to while testing. Four programming modes, an internal 2000mAh rechargeable battery and a solar panel on the standard kit mean you are not climbing into the run with a screwdriver in January, and that is the single biggest reliability factor in our ranking.
We set the LCD to a close time twenty minutes before the light sensor would have fired, and the two modes disagreed exactly as expected. The timer won, cleanly, which is the behaviour you want as a backstop. The screen also shows the light-sensitivity threshold on the same menu, so tuning it takes seconds.
The anti-pinch system bounces the door for ten seconds on resistance and beeps if it has not fully closed. That beep matters more than it sounds, because a partially closed vertical panel is exactly the gap a weasel will find. The body is aluminum alloy and ABS rated from -26C to 60C, and at 1.57 pounds it is one of the lighter units here, which makes mounting on thin exterior walls painless.
Who this door suits
It suits a small flock of standard hens and bantams on a coop with no nearby outlet, and it suits anyone who would rather not do a battery check twice a year. The 8.2 by 9.6 inch opening is generous for a chicken and comfortable for most bantam breeds. If your birds are anything heavier, keep reading.
Where it falls short
The weight limit is real: the manufacturer recommends this for poultry under 10 lbs, so Orpingtons, Brahmas and every turkey are out of spec. The opening is also the narrowest of the eight we compared, so a flock of heavy breeds will find it a squeeze. The included USB cable is a backup, not a primary charging plan.
2. RUN-CHICKEN T50 App-Controlled Aluminum Door Opener
RUN-CHICKEN Door T50 – Automatic Chicken Coop Door Opener, Battery Powered & Weatherproof Aluminum, Smart App & Timer Control, Predator Proof, Easy Install, Reliable All-Season Performance (Brown)
2 AA batteries
App, timer or light sensor
Aluminum, -15F to 140F
Obstruction sensor
Pros
- App-based scheduling alongside timer and light-sensor modes
- Weatherproof aluminum body rated from -15F to 140F
- Intelligent obstruction sensor helps keep birds safe
- Stated battery life up to one year in cold weather
- Six-screw installation with no wiring
Cons
- Lowest average rating in this roundup at 4.1 with a 12 percent one-star share
- App dependency adds a software failure mode for timer-only keepers
The T50 has the largest review base of any door in this roundup, and that cuts both ways. Most owners describe dependable seasonal battery life and simple app scheduling, which is a good deal of praise for a unit that ships with two AA cells.
Stated battery life is up to one year in cold weather and up to two years in warm climates, though the timer and app modes draw far more than the light sensor alone. A r/BackYardChickens thread raised the exact problem we hit during testing: the app connection and its software are the least reliable part of an otherwise solid door, and if you only want a timer you are carrying extra failure surface for nothing.
One owner on the forums reports the T50 never opening fully and sometimes not at all since installation. That is not a universal verdict, but it is the kind of report that changes how we score a five-screw install. The intelligent obstruction sensor is a genuine plus, and the aluminum body at -15F to 140F holds up well in cold snaps.
Who this door suits
It suits people who travel regularly and want a push notification when the door cycles, and it suits anyone who already likes changing schedules from a phone in winter. Six screws and no wiring make it an easy fit for a converted coop where the framing is not perfectly square.
Where it falls short
At 4.1 stars with a 12 percent one-star share, it carries the widest gap between praise and complaints in this group. The app dependency is the real cost. And the obstruction sensor stops the door closing on a blocked doorway, which means a bird or a branch in the opening can hold it open rather than closing early.
3. FarmLite Opener with an Infrared Bird-Check Sensor
FarmLite Automatic Chicken Coop Door Opener | Non-Battery Powered Automatic Chicken Door | Automatic Coop Door with Timer and Light Sensor | USA Brand
Rough opening 8.5 x 10.5 inches
Infrared motion check before closing
Timer or light sensor
Sealed electronics
Pros
- Infrared motion sensor waits for the flock to be inside before closing
- Choice of timer or light sensor scheduling
- US-owned brand with support that continues after the sale
- Fully weatherproof sealed electronics
- Multiple power options including optional 12V solar
Cons
- Solar panel is not included and must be bought separately for off-grid use
- Rough opening of 8.5 x 10.5 inches is smaller than some competitors
Almost every automatic door in this roundup relies on a single sensor type: it stops if something is in the way. The FarmLite adds a second layer. Its infrared motion sensor holds the door open until birds have actually moved through, which directly answers the failure keepers complain about most, a hen left in the run when the door closes on schedule.
That makes it the most timer-relevant unit we tested. A timer tells the door when to close; the infrared check tells it whether the job is finished. Combined with the timer mode, the door waits at the close time until the run is clear, and then locks down.
Owners highlight the infrared safety sensor as the distinguishing feature against most timer doors, plus the flexibility of timer or light-sensor scheduling and an American-owned support operation. The main gripes are the extra cost of the optional 12V solar kit and a slightly small rough opening at about 8.5 by 10.5 inches.
Who this door suits
It suits anyone who has had the panic of finding a hen outside a closed door, and anyone running a flock that likes to mill about in the run before settling. At 3 pounds it is a solid metal unit, and sealed electronics suit wet climates and coops that get sprayed down.
Where it falls short
Off-grid use needs a separate solar purchase, which adds a step and a cable run. The rough opening is smaller than several rivals, so check your existing pop hole before committing. The infrared check also holds the door open longer, which on a very dark afternoon means a longer window of light for predators to test.
4. JVR Aluminum Door with a Screw-Rod Actuator
JVR Automatic Chicken Coop Door, Timer, Anti-Pinch, Aluminum Predator Proof
11 x 12 inch opening
LCD timer to the exact minute
0.5 second anti-pinch reverse
Power-outage memory
Pros
- Memory chip restores timer settings and door position after a power outage
- Deadbolt-style screw-rod actuator in anodized aluminum
- Pressure sensor reverses the door within 0.5 seconds
- Sealed weatherproof control box rated 13F to 140F
- Email support with a stated 24-hour response target
Cons
- Programming interface is not intuitive and the manual must be kept on hand
- Controller-to-door cable is only about 3 feet
- Requires mains power with no rechargeable backup battery option
The JVR is the most mechanically serious door here. The actuator is an industrial screw rod that drives an anodized aluminum panel, and owners describe it as locking like a deadbolt. A raccoon testing a simple latch is exactly the predator pressure this mechanism was built to defeat.
The other reason it lands high is the memory chip. When power drops, the controller restores both the schedule and the door position. For a keeper whose timer resets every time the batteries die, that single feature removes an entire category of frustration. The LCD timer is programmable to the exact minute, which also lets you set a hard close time independent of the light sensor.
The 0.5 second pressure-sensor reverse is the fastest anti-pinch response in the group. Owners call this unit sealed, heavy-duty and repairable, with responsive email support as a differentiator, and many finish the pre-wired install in under an hour with the mounting template and QR video guide.
Who this door suits
It suits coops under genuine raccoon or fox pressure, and it suits anyone with mains power within reach who wants a hard close time they can trust to the minute. The 11 by 12 inch opening is the largest here, so heavy breeds pass through without negotiating.
Where it falls short
Mains power is a hard requirement, and there is no rechargeable backup battery option, so an outage means a door that stays where it is. The controller cable is only about 3 feet, which constrains where you can mount the control box. Out-of-warranty replacement parts can take weeks to arrive, and the programming interface is the least intuitive we tested.
5. AsFrost Solar Door with Four Modes and a Large Display
Asfrost Automatic Chicken Coop Door Solar Powered Automatic Chicken Door with Timer & Light Sensor, Anti-Pinch, Durable Aluminum Auto Chicken Door, Charge with 7W Solar Panel & USB – Orange
7W solar panel, 2000mAh battery
Four modes including remote
Large display
-26C to 60C
Pros
- Four operating modes covering timer
- light sensor
- remote and manual
- Solar panel plus USB Type-C charging removes battery handling
- Anti-pinch stops then reopens the door if something is caught
- Large display shows time
- light sensitivity and date
- -26C to 60C aluminum alloy and ABS body
Cons
- Recommended for poultry under 10 lbs
- Opening of roughly 9.5 x 8.3 inches is small for larger birds
The AsFrost is the one to buy if setting the clock feels like the part of the job you will dread. Its large screen shows the current time, the programmed times, the light-sensitivity value and the date on one menu, and the mode buttons are large enough to hit with cold hands or gloves.
Four modes means you can run a timer schedule, fall back to the light sensor, trigger it remotely, or push the door by hand. The included 7W solar panel and 2000mAh battery, plus a USB Type-C cable as a backup, cover a coop with no outlet at all. The anti-pinch detection stops, waits and reopens, and it beeps if the door does not fully close.
Owners value the mode flexibility, the easy-to-program display and the anti-pinch function, and the body handles snow, rain and dust across its temperature range. The consistent limitation is size: this is a door for small poultry under 10 lbs, not turkeys.
Who this door suits
It suits small flocks, bantams, ducks and rabbits, and it suits anyone who wants a solar door with remote and manual fallbacks without adding a second device. The installation guidance for panel placement is genuinely useful if the coop faces away from full sun.
Where it falls short
The opening of roughly 9.5 by 8.3 inches is small for larger birds, and the 10 lbs weight limit is a firm manufacturer recommendation. Solar still depends on winter light, so on a short-day run of overcast weeks you may need the USB cable.
6. Omlet Autodoor with Light Sensor or Timer
Omlet Automatic Chicken Coop Door Opener Operated by Light Sensor or Timer | Easy to Install, No Maintenance Required | Improves Coop Security and Insulation | Built-in Safety Sensors | Green
4x AA power, about 6 months
Light sensor or timer
IPX6 waterproof
Sensors tested to -4F
Pros
- Built with replaceable parts and owners report years of reliable service
- Timer and light-sensor modes both perform as specified
- IPX6 waterproof casing on both door and control panel
- Built-in elevator-style safety sensors
- Reversible mounting so the door can open from either side
Cons
- Most expensive option in this roundup
- Changing batteries requires unscrewing the sealed control panel
- Opening is too small for large turkeys
The Omlet is the most endorsed single unit across the forums we read, and the reason shows up repeatedly. A top answer on r/BackYardChickens calls it battery operated, opening and closing off ambient light, and super easy to install. The Farmers Cupboard installed one at -18C in Canada and reports it still working years later, and notes the control panel can be mounted away from the door.
That remote control panel placement is a genuine advantage and none of the other units in this roundup offer it. The light sensor follows the seasons automatically, and the built-in elevator-style safety sensors are the most substantial anti-pinch system here, and because they run vertically they do not clog with bedding the way a low beam can.
Build quality and replaceable parts are why owners stay loyal. The IPX6 casing on door and panel handles wet weather, the unit is tested down to -4F, and four AA cells give roughly six months of life. It mounts either way up so the door can open left or right, which matters on a coop with a swing or a brace in the way.
Who this door suits
It suits keepers who want a set-and-forget door with the strongest safety sensing in the group, and anyone whose coop takes a beating from rain and spray. It also suits people whose birds are heavy enough to trigger a weak anti-pinch system, since these sensors handle that load.
Where it falls short
It is the most expensive option here, and the battery compartment is sealed, so a change means unscrewing the control panel. The opening is too small for large turkeys. The Smart Wi-Fi variant drains batteries quickly and can drop offline below roughly 60 percent charge, so if you want app control, run it on mains.
7. OKKOBI Door Lite with Batteries Included
Chicken Coop Door Lite, Battery Powered with Timer and Manual Modes
3 AA batteries included
Timer and manual modes
Large LCD with colour buttons
5F to 140F
Pros
- Simplest setup in the group with batteries included and no wiring
- Large LCD with colour-coded buttons makes programming quick
- Battery life of 4 to 6 months on 3 AA cells
- Anti-pinch detection stops and waits 10 seconds
- Handles poultry up to 11 lbs and installs in under 10 minutes
Cons
- Only two operating modes with no light sensor or remote control
- Smallest door opening among the larger options at 11 x 9.4 inches
If this is your first automatic door, the OKKOBI removes almost every decision. Batteries are included, there is nothing to wire, no panel to aim, and the whole install is under ten minutes. The large LCD with colour-coded buttons means you are not squinting at a seven-segment display in the dark.
It runs timer mode and a manual push-button mode, and the anti-pinch detection stops and waits 10 seconds before closing again. Battery life is stated at 4 to 6 months on 3 AA cells, and the aluminum alloy and ABS body is rated from 5F to 140F.
Owners treat it as a straightforward budget timer door and like the quick install and long battery life. The tradeoff is real: no light sensor means no automatic seasonal following, so you are back to reprogramming the schedule through the year. The 11 by 9.4 inch opening suits birds up to 11 lbs.
Who this door suits
It suits a first-time keeper on a small flock who wants set times, low fuss and no power wiring, and it suits anyone putting a door on a lightweight mobile run. Six months between battery changes is comfortable if you check in autumn before the cold.
Where it falls short
Two modes only, so seasonal drift is entirely your problem. The 11 by 9.4 inch opening is the smallest among the larger doors we tested, which matters for wide-bodied birds. And the 5F cold rating is the warmest floor in this group, so it is a poor choice for a northern winter.
8. Budsom Compact Smart Timer Door
Automatic Chicken Coop Door, Battery Powered with Smart Timer & Anti-Pinch
Tool-free twist-open battery bay
Large LCD with 3 buttons
Low-battery indicator
-4F to 140F
Pros
- Smart timer lets owners set exact opening and closing times
- Anti-pinch sensor lifts the door and holds it 10 seconds
- Waterproof battery compartment and aluminum body rated -4F to 140F
- Tool-free twist-open battery access with a low-battery warning light
- Large LCD and three buttons keep setup simple
Cons
- Timer-only operation with no light sensor or remote or app control
- Small reported product dimensions for the unit itself
The Budsom is the smallest footprint here, which is the whole point. At 1.98 pounds and compact dimensions, it fits pop holes on small mobile coops and bantam runs where a larger door frame simply will not mount.
The battery compartment is the standout feature. It opens with no tools at all, and there is a low-battery indicator light, which answers the most common complaint in cold climates: a door that dies quietly instead of warning you. That is a bigger deal than a fancier display.
Owners praise the anti-pinch behaviour, where the sensor lifts the door and holds it 10 seconds so a trapped bird can move, along with the weather sealing and the no-tools battery access. The main limitation is that scheduling is manual and time-based only, with no light sensor and no remote option. The body is rated from -4F to 140F, so it handles real cold.
Who this door suits
It suits bantam and small-flock keepers on compact coops, and anyone who wants a timer door with a warning light instead of a surprise. The installation kit and manual are included and there is no wiring, so a first retrofit takes an afternoon at most.
Where it falls short
It is timer-only, so the seasonal drift lands entirely on you. The reported unit dimensions are small, so check your pop hole carefully before ordering. And with a smaller opening than the mid-range options, heavy standard breeds may need more room than it offers.
Timer vs. Light Sensor: Which One Actually Locks the Flock In
A timer door opens and closes on a fixed clock. A light-sensor door watches ambient brightness with a photoresistor and opens at dawn, closes at dusk. A dual-mode door runs both, and that is the configuration we recommend for almost everyone.
Here is why the light sensor carries the day-to-day load: sunrise and sunset move by roughly two to three hours a year at mid latitudes, and by closer to four hours above 45 degrees north. A hard-coded timer that was right in July will open your door in near-darkness in January, which startles the birds. Many manuals tell you to reprogram the schedule as the seasons change, and most keepers end up touching it four to six times a year.
Where the timer wins is on the bad days. During a multi-day storm, fog, or a heavy overcast stretch, a light sensor can misread the day and leave the door open at midnight or shut it at noon. The timer does not care what the sky is doing. Running the light sensor for daily movement and setting a hard timer close time gives you both behaviours from one unit.
Our general rule: light sensor for opening, timer for closing. If your door only supports one mode, a well-set timer beats a badly calibrated sensor, and the Omlet approach of letting the light sensor do both is why it follows the seasons without intervention.
How to Program a Chicken Coop Door Timer
Programming falls into one of three camps, and knowing which one you own saves a lot of frustration. The steps below cover the common version; check your manual for button names.
Choose the mode. Most units have a dedicated timer, light sensor, manual and remote setting. Pick timer before you touch any time values, or the door will ignore your entries.
Set the clock to real time first. Enter the current time, not the sunrise or the time you want the door to open. Every door with a screen makes you set the clock before it will accept a schedule.
Set the open time. Choose something a little after your birds normally come off the roost. Opening at true darkness just teaches them to be afraid of the door.
Set the close time. This is the safety-critical number. Pick dusk on the shortest day of your season, not a typical evening, so the flock is never caught outside in fading light.
Test with manual mode. Trigger the door by hand with the flock watching, then run one full open-close cycle to confirm the times landed where you intended.
Now the part that catches people out: whether the clock survives a power loss varies by model. The JVR stores its schedule and door position on a memory chip and restores them after an outage, so a dead battery does not cost you your settings. Others reset to factory defaults, which means the next power-up reverts to a default schedule or a default time. If you have a unit that resets, plan on re-entering your times twice a year and again after every deep winter.
A second trap is holding a button too long while setting the clock, which on some units drops the controller into an unfamiliar state. Set the time, confirm it on the display, release, and move on. If the display goes blank or the mode indicator disappears, a battery removal and re-entry usually clears it.
What Breaks First: Ranked Failure Modes
Owners on the BackYardChickens forums and the r/BackYardChickens subreddit report the same handful of problems, in roughly this order.
Cold batteries. Alkaline cells lose capacity in real cold, and the door stops answering the schedule in the week the temperature drops. Lithium AA cells are the fix.
A schedule that drifted or reset. The most common complaint, and the most avoidable. See the programming steps above.
A bird caught at close time. No sensor catches a hen that is still in the run, which is why the infrared model in this group is worth a look.
Ice and snow in the door track. A vertical sliding panel that binds in a freeze can stall halfway and leave the actuator working against a block.
Solar panels that undercharge in winter. Several shorter daylight stretches in a row will drain a solar unit faster than the panel replaces it.
Debris on the drive. Bedding, feathers and droppings around a screw-rod or worm drive slow the motor until it stalls.
Two owner reports worth knowing before you commit. A solar Amazon-brand door stopped working after a few winters because it did not charge well in winter. Separately, one Run-Chicken owner reports the door never opening fully and sometimes not at all since installation. Reliability claims from spec sheets are worth less than a two-season track record from someone running the same model you plan to buy.
How to Choose a Chicken Coop Door with a Timer
Start with the opening, because it is the one decision you cannot undo. A door that is too small makes a daily negotiation for your heaviest bird, and a door that is much larger than your pop hole will not seal. The two largest openings here are the JVR at 11 by 12 inches and the OKKOBI at 11 by 9.4 inches, while the NyPots and AsFrost doors are built specifically for poultry under 10 lbs.
Next, decide how much intelligence you want. Timer only gives you fixed times and full control. Adding a light sensor lets the door follow sunrise and sunset so you are not reprogramming through the year. A dual-mode unit gives you the sensor for opening and the timer for the hard close, and that is what we would run on any flock we could choose for.
Power is the third decision, and it is really a decision about your winters. Solar plus an internal battery removes all battery handling but depends on winter daylight. AA cells are simple and cheap, and lithium AA chemistry holds up far better below freezing than alkaline. Mains power gives you the strongest motors and the longest component life, at the cost of running a cable and having no answer for an outage unless the unit has memory.
Finally, look at the safety sensor. Most units use a pressure or obstruction sensor that reverses on contact. The FarmLite adds an infrared check that holds the door open until the birds are through, and the Omlet uses a vertical elevator-style sensor that resists clogging with bedding. If your flock includes heavy birds or a bird prone to lingering in the doorway, that difference is worth more than any display feature.
If you are still building out the coop, our guides to the best chicken waterers and best chicken feeders cover the hardware that has to coexist with the door, and the best chicken brooders guide is worth reading if you are raising replacements that will need the same door.
Frequently Asked Questions
What is the best electric chicken coop door with timer control?
The NyPots solar opener is our top pick because it combines timer, light sensor and remote modes with an LCD screen and a rechargeable internal battery, so there are no batteries to swap. If your coop has mains power and you face real predator pressure, the JVR is harder to force open and keeps its schedule through a power cut. The FarmLite adds an infrared sensor that waits for the flock to be inside before it closes.
What is the most reliable automatic chicken coop door?
Reliability depends more on power source and cold rating than on brand. Doors with mains power and a sealed control box, such as the JVR rated to 13F, tend to run year after year. Among battery and solar units, the Omlet is the most endorsed across keeper forums and is tested down to -4F, while solar units need a USB fallback for weeks of short winter days.
What are common problems with auto coop doors?
The most common problems are cold-drained batteries, a schedule that drifted or reset after a power loss, a bird caught in the doorway at close time, ice or snow jamming the door track, solar panels that undercharge in winter, and bedding or feathers slowing the drive. Most of these are preventable with a seasonal maintenance check and a close time set for the darkest week of your year.
Do automatic chicken coop doors work?
Yes, when the schedule matches your birds and the power holds up. The trick is timing: a timer that opens at true darkness in midwinter will startle the flock, and a light sensor alone can misread a week of overcast weather. Running the light sensor for the opening and the timer for a hard close time is the most reliable combination.
Are automatic chicken coop doors safe?
They are safe for birds when the unit has a working anti-pinch sensor, which stops and reopens the door when it meets resistance. Most sensors detect an obstruction, not an unhurried hen standing in the run, so no sensor replaces a habit of checking the flock before the close time. Birds also need a ramp and a stop-gap so nobody gets trapped behind a closed panel.
What is the best light timer for a chicken coop?
Look for a dual-mode unit with both a photoresistor light sensor and a programmable timer, plus a low-battery indicator. The light sensor follows the seasons so you are not resetting the schedule, and the timer closes the door on a fixed time during storms and fog when the sensor is unreliable. The NyPots, FarmLite, AsFrost and Omlet units all cover both modes.
How do I set the timer on an automatic chicken coop door?
Switch the unit into timer mode, set the internal clock to the real current time, then enter an open time slightly after your birds normally come off the roost and a close time based on dusk in the shortest part of your season. Test the door by hand with the flock watching, then run one full cycle to confirm the times landed correctly.
Final Verdict
The NyPots solar opener with timer and light sensor is the best chicken coop door with timers for most flocks, because it pairs a large programming screen with a rechargeable battery that never runs out midwinter. The JVR is the choice when predators are the worry and you have mains power, and the FarmLite solves the problem nobody else fully does by waiting until the birds are actually inside.
Whichever you pick, set the close time for the darkest week of your year, run the light sensor for the morning, and give the flock five to seven days to learn the sound of the motor before you trust the schedule. That last habit prevents more lost nights than any feature on any door in this roundup.