展示警报

showcase alarm1. 3 batteries in it. 2. long term usage without battery changed. 3. key lock or turning switches for activation or deactivation. 4. 2 micro switches for door contacting. 5. Red LED flashing shows system alarms. 6.Sound alarm(loud Beep) when the door will be opened. 7. it can connect control panel by wired or wireless. 8. it can remote control. Using in a showcase as door contact alarm. When the door is closed no alarm. When the door is open,it alarm immediately.