External Device Relay Switch

The External Device Relay Switch allows the radar speed sign to trigger external devices* such as cameras, flashing beacons, and audible alarms to deliver additional warnings or messaging; or allows the external device to trigger the radar speed sign.

The External Device Relay Switch option is available for AC and solar powered models. It can be programmed to trigger external devices based on:

  • Time and/or Speed
    Triggers messages or alerts based on time of day and excessive speeds. Especially useful for school zones or event areas.
  • Temperature
    Triggers messages or alerts based on temperatures. Especially useful to notify drivers of hazardous road conditions or other weather related warnings.

    External Device Relay Switch

*External devices are customer supplied and integrated, and must be separately powered.

External Device Relay Switch PDF