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WSR Wireless Sensor Receiver

Add wireless inputs to existing systems

The Wireless Sensor Receiver together with Eltek's range of GenII telemetry transmitters enables users to integrate radio connected sensors with their existing data loggers or data acquisition systems with ease.

  • Up to 16 sensors' values (e.g. temperature, humidity, light, voltage or current) are presented as corresponding 0-5VDC or 4-20mA outputs on the WSR receiver, allowing quick, easy and accurate connection to existing data gathering systems.
  • Uses standard license exempt frequencies
  • Long distance assured - up to 1Km depending on installation
  • Uses Eltek’s field proven and readily available series of GenII transmitters
  • Ideal for permanent or temporary applications e.g.
    • temperature mapping
    • research projects
    • difficult to wire environments
  • Continue to use your preferred analysis software

The WSR is a self-contained mains-powered receiver and output unit with built-in batteries providing 48 hours of operation in the event of a mains failure. An LCD is incorporated for real time metering of sensor values. The WSR is suitable for systems which accept 0-5VDC analogue inputs with slowly changing variables – typically measured every 10 seconds. Two models are available with either 8 or 16 inputs/outputs.

Most Eltek GenII transmitters can be used with the WSR (apart from event or pulse transmitters).


Key Features

  • Built in rechargeable battery pack for more than 24 hour operation should AC supply fail
  • Power supply for 110 to 250VAC included
  • Built in display for quick review of received sensor values
  • Supplied with “WSR” configuration software, easy to create authorised transmitter list and scaling.
  • Can be used with multiple repeaters (type RP250GD)
  • SMA antenna socket for attached antenna or external antenna options
  • Compact enclosure free standing or wall mounting, easy to use rising cage instrumentation connectors.
  • Versions available to provide 8 or 16 4-20mA output or 8 or 16 0-5VDC output.

The following accessories are available for the WSR:


Receiver frequency: 434.225Mhz , 914.5Mhz or other (contact Eltek)
Sensitivity: -110dbm
Useable sensitivity: -117dbm
Compliant to: EN300 220-1
Ambient temperature: -10 to +55°C
Humidity: Up to 95% (non condensing)
Power supply requirements: 12V DC at 500mA
AC power supply provided: 100/250AC to 12VDC type MP12U
Built in rechargeable batteries: 7.2V (6 x NiMh 1.8Ah pack)
Battery reserve: >24 hours
Dimensions (ex. Antenna): D 41mm x W 80mm x H125mm
Weight: 500g inc. batteries
Antenna connector: SMA (socket)
Programming connector: 6 pin Mini Din (socket)
Analog outputs connector: rising cage screw connector

System capacity

Type Output configuration
WSR8V 8 x 0-5VDC
WSR16V 16 x 0-5VDC
WSR8C 8 x 4-20mA
WSR16C 16 x 4-20mA


Product datasheet:
WSR technical data sheet