Measure indoor temperature, humidity, light, and acceleration wherever you need. Connect it to any LoRaWAN® network, configure it how you like via NFC or downlink configuration. Its small size makes it discrete and easy to install.


This product is not recommended for new installations.

In stock (can be backordered)

Quantity Price
1+ 80 EUR
10+ 67 EUR
100+ 59 EUR
SKU: ESM5k Categories: ,


Inside the ESM5k you will find internal sensors. A temperature sensor, humidity sensor, light sensor, and an accelerometer. Besides the indoor environment, it is also possible to measure movement by acceleration.

The battery life is estimated to be up to 10 years but depends on sample interval, transmit interval, data rate, and environmental factors. It is powered by one 3,6V ½ AA lithium battery.

All our sensors are equipped with NFC (Near Field Communication) for easy configuration with an Android phone. You can change the sample rate, data rate, encryption keys, triggers, activation, and much more in our application “Sensor Settings“.  All our sensors are built on the LoRaWAN® stack from Semtech.

Channel plans for US 902-928, EU 863-870, AS 923, AU 915-928, and KR 920-923.

Battery is not included. 

Please visit our webpage for more information about this product.

Additional information

Weight 0.040 kg
Dimensions 75 × 35 × 20 mm