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Elvaco offers temperature and humidity sensors, both for indoor and outdoor environments. The product line enables simple and cost-effective metering, which enables a more effective use of energy and a better real-estate climate. Sensors are available with M-Bus or Wireless M-Bus communication, as well as with or without display.  


Elsys ERS Eye - Indoor sensor, LoRaWAN

ERS Eye is a LoRaWAN sensor for high accuracy measuring in indoor environments and is a great sensor for smart buildings, dynamic workspaces, or climate control. It has a discrete and minimalistic design and is equipped with internal sensors for measuring temperature, humidity, light, motion, and occupancy (based on body heat). The sensor can easily be configured with a mobile app. A battery is needed for the sensor, this is ordered separately. The expected battery life is up to 5 years (depending on transmit interval, data rate and usage environment).


Electrical connections

Electrical characteristics

Environmental specifications

Temperature sensor, margin of error

Humidity sensor, margin of error

User interface


Wireless M-Bus

Integrated M-Bus Master

Wireless M-Bus Receiver

M-Bus slave interface


Data storage (examples)

Mobile Network

Fixed Network (Ethernet)



Connections and Interfaces


For downloads, please visit our support site at: https://support.elvaco.com

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