Best-in-class integrated 4-in-1 Open/Close Sensor
No Gateway Required! Uses the Helium Network*
No Subscription Fees Required!
All Network Fees are included in the Price!
(*non-Helium option also available)
- Built-in alarm buzzer with min 80 dB
- Simple setup with FREE MerryIoT App for both iOS and Android
- Perfect for Windows or Doors
- Get Notifications via the App on:
- Open and/or Close
- Tampering of the device
- Also provides data on:
- Signal coverage test button
- Up to 5 Years of battery life time
- Simple press-and-play activation
- Includes doubled-sided tape for placement