The E-Z Detector Checker tests the detector, and harness wiring/circuit board connection. Can also be used to help quickly calibrate open/close limits and swing timers. Never needs battery replacement, unit is powered by the operator.

The E-Z Detector Checker tests the detector, and harness wiring/circuit board connection. Can also be used to help quickly calibrate open/close limits and swing timers. Never needs battery replacement, unit is powered by the operator.