Elsys ERS Sound Sensor

The Elsys ERS LoRaWAN® Sound sensors are the perfect solution for monitoring indoor noise levels. Incorporating temperature, humidity, light and motion detection as standard, these compact and discrete battery powered LoRaWAN® units are perfect for overseeing noise and comfort levels in spaces such as libraries, offices, classrooms and airports.
Elsys ERS Sound Sensor

Ideal for Smart Building applications, the Elsys ERS Sound Sensor is ideal for the following uses:

  • Indoor environment measuring
  • Smart buildings
  • Workplace management
  • Room occupancy
  • Sound level control in public spaces, schools, libraries

Elsys ERS LoRaWAN® Sound sensors can be easily and quickly retrofitted to existing buildings allowing an overview of the comfort and sound levels. Housed in a clean, modern-looking casing, the Elsys ERS Sound sensor can be discretely wall mounted in any setting, enabling you to maintain optimal indoor working conditions without compromising on the overall aesthetics of your surroundings.

Alliot’s specialist technical team offer a full provisioning and configuration set-up service for our range of sensors prior to shipping, reducing the need for technical installation experts to deploy the sensors. Contact us to discuss your requirements.


  • LoRaWAN® Certified
  • Sound sensor / Peak + Average
  • Always on – no missed sound events
  • dBa filtering
  • Temperature sensor
  • Humidity sensor
  • Light sensor
  • Motion detection sensor (PIR)
  • LoRaWAN® Class A Compatible
  • Over The Air Activation (OTAA)
  • NFC for configuration
  • Configuration over the air
  • Compact and discrete

These sensors are battery operated (with 2 x AA standard size 3.6V lithium batteries) to offer maintenance free monitoring enabling a complete wireless solution.


Weight 60g (excluding batteries)
Dimensions 86 x 86 x 27
Operating temperature 0 to 50°C
Humidity 0 to 85% RH (non-condensing)
Battery type 2 x 3.6V AA Lithium Batteries
Expected battery life <2 years (depending on configuration and environment)
Sampling & Data Upload Interval Configurable via NFC and downlink configuration
Wireless Technology LoRaWAN 1.0.3 rev B

Key documents & information

  • Elsys ERS Sound Datasheet
    • Elsys ERS Sound Operating Manual

    • Ordering information

      Part Code: ERSSound
      RRP: £151.04+VAT
      Discounted Trade Pricing: Contact us for trade pricing, to place an order or to discuss your IoT projects.

      All of our products are available to customers throughout Europe. For more information on shipping costs, trade pricing and lead times, please contact our team.

      Our technical sales team are also happy to advise customers on the best LoRaWAN® solution for their specific applications on an individual project basis.