This is the Konig Wireless alarm system [SEC-ALARM110] Multi functional plug and play wireless alarm system. Easy and quick installation. Secures houses, offices, shops, etc. in just a few minutes. The alarm unit with a 100 dB siren and LED indicators displays which sensor is triggered. Complete with 2 wireless door/window sensors for securing doors and windows, 2 passive infrared (PIR) detectors and 2 vibration sensors for use on glass. Door/window and vibration sensors can be switched to RF or RF + alarm. Switched to RF + alarm activates a 95 dB siren on the sensor. Supplied with 2 RF controlled remote controls to arm or disarm the system. Function switch on alarm unit for alarm or door bell use (chime). Batteries included for the sensors and the remote controls. ...Contact us if you need more help.