Wireless Limit Switches Require No Batteries

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Wireless limit switches feature an internal electrodynamic energy generator.  No battery required.  Displacement of the actuator generates power to send a unique, coded telegram to one or more compatible, easily-programmed Receivers.  If limit switch does receive the confirmation signal within 15ms, it transmits a secondtelegram.  Receiver accepts up to 10 discrete telegrams per channel.  



  • Available for operation at 915 MHz (USA/Canada/Australia) or 868 MHz (Europe)
  • Maximum nomional transmission range:  40 m indoors, 450 m "free air"
  • Bidirectional communicatiions with Receiver confirming receipt of telegram
  • Switch action configurable at Receiver (e.g.  NO, NC, other)
  • Ingress protection rating:  IP67
  • Mechanical life expectancy :  > 1 million actuations
  • Operating temperature range:  -20 to + 65 oC.
  • Certifications:  FCC, IC ( for SW915 MHz models), EC (for 868 MHz models)



  • Variety of actuator styles (e.g. roller plunger, roller lever, rocker lever, spring rod,  others)
  • Transmission range extenders