The Smart Temperature Relay Switch (STRS) provides automatic control of user equipment based upon specified environmental trigger conditions (i.e., temperature and/or humidity). Utilizing compatible wireless RF sensors, the system is useful in a vast array of applications. With companion Windows application software and USB adapter cable (included), you may easily configure desired temperature/humidity limits and resulting trigger actions. The Windows application allows for occasional offline configuration setup, or can remain continuously active for online activities including realtime monitoring and/or optional logging. (Compatible with Windows XP, Vista, 7, 8, 10.)




  • Climate control
  • Exhaust systems
  • Farming and agriculture
  • Environmental control
  • Industrial automation
  • Plant & produce cultivation
  • Freezer alarms & refrigeration systems:



  • Evironmental monitoring & control via compatible wireless sensors
  • Configurable settings including setpoint triggers for temperature and/or relative humidity
  • Four (4) LED indicators show trigger status at a glance
  • Available low-cost wireless RF sensors for remote temperature/humidity monitoring
  • Assign trigger setpoints for as many as four (4) individual wireless sensors
  • Also accepts optional switches for hard-wired triggering
  • Onboard relay with N/O and N/C contacts (rated 10A @ 125VDC, 5A @ 100VDC)
  • Temperature range: -40 deg.F to 158 deg.F (-40 deg.C to 70 deg.C)
  • Windows software for configuration and monitoring (includes USB adapter cable)
  • Optional event logging (premium edition only)


What’s Included:

  • STRS controller with integrated wireless RF receiver
  • Built-in relay with Form C contacts plus convenient wiring screw terminals
  • Two (2) wireless temperature/humidity sensors (see note below)
  • Windows application software – for configuration setup, realtime monitoring, and optional event-logging (premium edition only)
  • USB adapter cable
  • AC power adapter


  • System includes two (2) wireless sensors. (Additional sensors sold separately.)
  • Wireless sensors require two AA batteries.
  • While the STRS can monitor an unlimited number of wireless sensors, a maximum of 4 sensors can be selected for trigger-based control.


Additional Info:




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Weight 2 lbs
Software edition

Standard, Premium