THE UNIT USES A P.I.R SENSOR WHICH WILL DETECT ANY MOVING OBJECT THAT GIVES OFF HEAT. IT USES THIS PRINCIPLE TO DETECT YOUR LOCO WHEN IT PASSES THE SENSOR TO OPERATE YOUR SIGNAL THE UNIT COMPLIES TO CURRANT I.P.65 RATINGS COMES FULLY CASED SUPPLIED WITH CABLE GLANDS THAT ALLOWS CONNECTION TO YOUR BATTERY AND A SEPARATE GLAND FOR YOUR SIGNAL WIRING.
THE UNIT CAN WORK FROM A VOLTAGE AS LOW AS 8 VOLTS RIGHT UP TO 28 VOLTS .THIS ALLOWS THE UNIT STILL TO FUNCTION EVEN IF THE BATTERY IS RUNNING LOW
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