- Band: EU868
![](https://connectedthings.store/952-large_default/laird-sentrius-455-00041-open-close-door-sensor-eu868.jpg)
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Laird Connectivity’s Sentrius Multi-Sensor is a battery-powered, long range door and window sensor open sensor that leverages the benefits of LoRaWAN and Bluetooth Low Energy (BLE) connectivity.
Packaged in a small, rugged form factor the device uses an external reed switch to detect door or window opening - ideal for detecting opening of walk in fridges/freezers or doors around smart offices and homes. It also features an internal temperature and humidity sensor - adding to its usefulness.
Ad usual with Laird devices, the sensor can be quickly and easily onboarded and tested via Laird's BLE mobile phone apps, and simply connects to your LoRaWAN network for long term monitoring.
Sentrius sensors are fully compatible with any LoRaWAN network server, including the Things Network, Loriot, Senet, Chirpstack, and more.
There is a fully-worked Node Red example available from Laird's website, and we have open-sourced a payload decoder function for The Things Network as a starting point for integration.
Laird Connectivity has released Android and iOS apps to make it easy to configure Sentrius sensors, get the apps and try them out!