Wireless Alarm Accessory extra add-ones HB solar powered alarm systems HB-YKQ-4 Remote Controller.
The Key-fob HB-YKQ-4 can control HB series solar-powered beams detectors, solar-powered siren strobe, alarm host, GSM alarm control panel etc. all HB solar-powered series security sensors and alarm receiver.
Features of HB-YKQ-4 Alarm Remoter: 4 buttons easy alarm system controlling. Arm, Disarm, Alert, Cancel Alert.
It has functions of arm/disarm the security system and trigger emergency alarm or cancel alarm.
Frequency: 433MHz
Battery: 3V Lithium button battery CR2450H
Wireless Transmission distance: 150-300m
https://www.vedardalarm.com/keyfob-hbykq4-for-hb-solarpowered-alarm-series-p-167