The AlarmFob is designed with LoRa long-range/low-power technology, which allows for up to 1000 feet of open-air wireless range.
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AlarmFob Introduction

AlarmFob Button Features
Regarding YoLink features, each button has the following capabilities:
Short-press and long-press actions (two per button X four buttons = 8 actions)

Directly control a YoLink device like a relay or siren, a light switch, plug or lock (for example, unlock a smart deadbolt or turn off a light switch)

Send a notification (for example, send a text message to family members, or play a text-to-speech message on SpeakerHubs)

Activate scene (for example, scene that locks doors and turns on porch light) or control Alarm Strategy (arm or disarm security devices)


FAQ
What is the wireless range of the AlarmFob?
Is the AlarmFob compatible?
The AlarmFob does not support integration with Alexa but the FlexFob has Alexa compatibility, enabling you to make full use of its features and access button actions as devices within the Alexa app.
Are the batteries replaceable?
Yes, the fob uses two standard alkaline AAA batteries. The battery cover is accessible from the back of the fob. After removing the screw (with a small Phillips screwdriver) gently pry off the cover with a slotted screwdriver. Replace the two AA batteries, then snap the cover back on, and reinsert and tighten the screw.
- SPECIFICATIONS
Specifications:
Power: (2) AAA alkaline non-rechargeable batteries (included)
Dimensions: 2 5/8" tall x 1 3/4" wide x 5/8" thick (67 x 44 x 16mm)
Environment Temperature Range: -4°F – 122°F (-20°C - 50°C)
Required:
1. YoLink Hub with an internet connection (wired Ethernet or 2.4GHz Wi-Fi).
Refer to the Hub user guide for additional information
2. Smartphone or tablet running iOS 9 or higher, Android 4.4 or higher
3. Tools Required: None
4. Installation Difficulty Level: Easy
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Hubs
First time with YoLink? Make sure to include a hub to begin your smart YoLink Home system, or take a look at our Starter Kits.
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Let customers speak for us
from 2082 reviewsI am using the smart plug in conjunction with a leak detector and Home Assistant as an emergency shutoff for the pump that carries water from my distiller to my refrigerator. If a leak develops and he pump runs, it will pump the reservoir dry and keep running, sending water everywhere and burning the pump out. Now, if a leak is detected, the pump will shut off and I will receive an alarm notification. Peace of mind.
The system is very easy to use and setup.
We installed brackets where the only wall space available to hang a water sensor type 2 was in view. I placed the brackets (and the sensor type 2 cords) along our baseboards, and it looks "finished" and reasonably attractive. The water sensor type 2 fit nicely in the bracket, helping to get the "finished" look.
I have installed 10 of these around the house and the crawl space. I have not had a leak yet, but every time I have tested each cord attached to a water leak sensor 2 before placing it, it gave me a warning each time. Also, I like how the Yolink app gives us a picture showing the remaining battery life. Also, for areas where you want the sensor 2 above any water (they are not waterproof), the brackets Yolink sells, and the cords look good along the floorboards.
Hub setup and works like it should. The QR code had trouble with controller and had to get it replaced received new controller and scanned QR code and downloaded internet took less then 10 seconds everything works like it should
When moving away from wifi sensors I was worried the setup would be hard. YoLink made it so easy! Sensors are connected in seconds and reporting over long distances, through walls and fast!
I wanted to automate a few things in my home...but I took the risk and bought 10.
I'm so glad I did. It has caused me to re-think the level of 'smartness' for my home. These things are great...only take a few seconds to add to my YoLink ecosystem!
Follow up to previous review, purchased original device to monitor pool water level, great device but had an issue with it a few weeks into it. Contacted customer service and after submitting a video showing issue a new device was received, device working as expected, kudos to customer support
Very slick and works as it should. I would like to see a few software changes.. such as programmable upper and lower limits for setpoints to eliminate tampering and excessive setpoint settings. Also possibly a lockable screen so no adjustments can be made without a password.
Been using it to detect possible washing machine leak and found the washer isn’t leaking but, the drain is slow and backs up and overflows. Great safety, troubleshooting, and monitoring device. I also use one to detect leaks in the basement, particularly after heavy rains and snowmelt. Easy to setup and very intuitive.
As with all the other devices from YoLink setup is a piece of cake, app settings are intuitive, accuracy is there, and it’s great for monitoring temperature and humidity trends. Currently using it to monitor crawl space humidity after some foundation repairs and crawl space incapsulation. Keep up the great work YoLink.
This 2-stage thermostat is packed with features. It works with heat pump as well gas furnace systems. And paired with the app, this tstat opens more possibilities and connection to the internet for remote access. The temperature sensor seems very sensitive, and I had to add 1.2 degrees when calibrated to a known temperature.
I installed two of these kits on my 1996 garage door openers, and they’ve been fantastic. Installation was straightforward, and they brought modern smart features to openers that I was ready to replace.
The range has been excellent—I can reliably operate the doors from about half a block away. Notifications are fast and dependable, so I always know when a door opens or closes. I also added a YoLink key fob in my car, which gives me a convenient physical button in addition to the app.
The YoLink app is clean, responsive, and easy to use. It’s a refreshing change from some other garage door apps that have become cluttered and less user-friendly over the years.
If you have an older garage door opener that’s still mechanically sound, this kit is a great way to modernize it instead of replacing the entire system. Highly recommended.
Very easy to install, great app system, with great features, easy to set up parameters.
It's nice to have all you questions answered anytime. It's also wonderful to understand how your well and pump are functioning.
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The Alarm Fob works great. Thank you. Dave
AlarmFob Smart KeyFob
All good
Works great. Very little delay. Tidy on keyring.