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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Simple and clear do-it-yourself installation
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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 2068 reviewsThis 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.
The flex fob was part of our solution to making our 1996 garage door openers work again. Clipped it to my visor and everything works with a simple button press now. I really appreciated how there was a direct connection to the garage opener in addition to being able to work over the hub network.
I installed this on one of my pool gate. As soon as the gate opens I get a notice on my phone. “Gate is open”. It also lets you set a reminder that the gate is still open. You choose the time span. It’s really cool that you could add a siren to the gate also; if need . I didn’t do that yet. I will be adding more sensors to the other two gates. Easy to install. I highly recommend this sensor if you have pool gates or any other sensitive doors and gates you want monitored.
DATA LOG FEATURE IS GREAT!
I bought my first one just to see if it really would work in my off grid vacation property. I have two fridges so after seeing how well they performed I ordered three more. They are all connected to one hub and now I could keep track of the temperature in the two refrigerator freezers on the property. To let you know how they perform I have sense ordered three additional thermostats and another hub for my refrigerator freezer and freezer in my main house. Yes I think they’re great products
in my main house. It’s all about peace of mind.
I have my well fill my 6000 gallon tank each night for 10 minutes every hour from 10 PM until 6 AM. (don't want to run the well hole dry). I have an electric solenoid valve that controls the tank fill. It's timed with a Yolink outdoor Plug Schedule.
The tank has a float that cuts off the well fill valve when the tank is full. That works great. So, as a backup, I put the Sensor 3 Probe in a 45º conduit fitting so any tank condensation wouldn't drip on the sensor. Then mounted the conduit/sensor through a hole near the top of the tank at a location just above where the float turns off the well-fill valve.
So, if for some reason, the float hangs up or doesn't work, the sensor will turn off the fill valve.
The Yolink Automation settings are settings are:
"When" Leak Sensor has Water Leak Alert, "Then" Turn off Tank Fill Plug/Valve.
Alarm Strategy: Default.
Alert Interval: 1 minute.
Delayed Alarm: 2 seconds.
So, with those settings, if water in the tank touches the Leak Sensor, the tank fill valve will turn off. And when the Plug/Valve tries to turn the fill water valve back on again and the sensor is still wet, the valve will turn off in less than one minute (the minimum time available for Alert Interval).
And, it mounts from the outside of the tank so I don't have to try to get my arm inside the tank access hole cover to do anything.
I guess this could be used instead of a float but I like the redundancy of the float and Leak Detector.
Works really good
Awesome I love them. I wish I would have done it years ago.
Play plug and play. Automatically integrated. Just stick it up on the door.
Still learning about all the tricks it can do.
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The Alarm Fob works great. Thank you. Dave
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Works great. Very little delay. Tidy on keyring.