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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Return within 30 days for a full refund
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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 1634 reviewsI went on a walk. I was at least 1/4 mile away and tested my plug on a light it worked I was amazed.. real game changing tech.. Thank you Yolink for a great product! PS I also really like how you included a charging port for the fob!
The product works without any issues. Instructions were good. Door notifications , open & closed are punctual. Thanks great value.i also have room & refrigerator/ freezer modules on system. Power went down and I was notified of temperature problem . That paid for the equipment. Thanks so much , I am very happy I bought it .
Works like a dream perfect solution for what I need
So our farm building are spread out a bit. Greenhouse, special raking systems inside greenhouse, storage rooms, open fields, pump house at the far end. And ai always know what the temperatures are. Sometimes it causes me to get up, put on a robe and head outside at midnight. And that is a good thing. Oh, and the original set of sensors has been up a couple of years.
Increase
The switch increased my lighting option. Installation easier with stranded wire.
Have 2 in my garage freezers and they work. I like the secure feeling knowing we are protected.
Smart Wireless Thermometer, Wide Temp Range for Freezer, Fridge, Green House, Pet Cage, App Alerts, Emails, Text/SMS alerts- Hub Required
Flowsmart meter/leak detector works great on my irrigation line at meter 400 feet from my home. No more costly undetected leaks.
We have a mail box rather far from the house. it has been a hassle checking for mail before it was delivered. Now I just check the app instead of going to the mail box. The range is increadible. I was a bit tricky to install it since the adhesive is for side by side positioning and here the door is perpendicular to the side of the mail box but after tinkering with it a bit I figured out how to mount it so that it works perfect. VERY VERY happy
Temperature & Humidity Sensor, Hub Required!
it took maybe 10 minutes to install including downloading and installing the app. I got the speaker hub which is nice because it announces when the garage door is opened and closed. The connection is great from the third floor to the ground floor on the other side of the apartment building.
I use the Smart Motorized Valve to control my outdoor water use with Home Assistant. When my rainwater cisterns are full, the valve closes and forces the irrigation to use collected rainwater. When the rainwater cisterns are depleted the valve opens and lets the irrigation use town water.
2 Thumbs up
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The Alarm Fob works great. Thank you. Dave
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