With a size slightly larger than an AA-battery, EMS is our most subtle sensor yet. EMS can be used as a regular indoor temperature sensor or in more advanced applications. The small size makes it ideal for mounting on door frames, under desks or any other limited surface area. Alternatively, if you simply need a discrete looking sensor, EMS is the one for you.

Monitor and control:

  • Temperature
  • Humidity
  • Leakage
  • Door activity
  • Acceleration


Specifications EMS

Inside the EMS you will find five internal sensors: temperature sensor, humidity sensor, leak detection sensor, accelerometer, and a reed switch. EMS is powered by one 3,6V AA lithium battery. The Battery life is estimated to be up to 10 years but depends on sample interval, transmit interval, data rate, and environmental factors.

  • NFC for easy configuration
  • Size : 21x72x20mm
  • Accuracy: ± 0.5°C, ±2%rh
  • Resolution: 0.1°C, 0.1%rh
  • Approx. range: 5km*
  • Battery life: 10 years**
  • US902-928, EU863-870, AS923, AU915-928, KR920-923
  • 1 x 3.6V AA lithium battery

* LoRa™ modulation SF10
** Depending on interval

Easy to configure

All Elsys 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 with our application “Sensor Settings“. 

Battery life calculator