BEKA wireless push-button detector, house alarm, blue. Bidirectional wireless push-button detector for integration into the RFZxxxD fire detection system is used to trigger the alarm manually. This detector has a range indicator with optical display in teach-in mode. The push-button detector shows its status via an LED and is reset by opening the flap. When the cycle change is displayed on the control panel after approx. 5 years, the reporting unit can be replaced using the RFA200D push-button insert.