5 programmable one-touch function keys with 25 options. LED status indicators. Piezo buzzer provides audible feedback for correct key entries, pre-alert and system trouble status. Current draw 85mA.

They’re just a loud buzzer with a magnetic reed switch. After holding one up to my poor fat old neglected wallet, I saw that the alarm was roughly the same thickness as all the old business ...

Designed for small to medium enterprises requirement of security Integrates RFID, burglar alarm, time attendance and access control functions etc. Features high quality musical buzzer, multiple ...