Single channel Smart GSM SMS Alarm box Home security alarm system, Mini and one battery on board for Main power failure alert DC5-15V Power input, One Alarm input, SMS alarm message would be sent to maximum 6 preset mobile phones when any alarm input is triggered When input is shorted to GND, the alarm will be triggered. Alarm SMS can be customized with your text Very smart and slim designed GSM box, can be easily mounted to other target system boards to add GSM alarm features Supports SMS alarm and phone calling alarm. Rechargeable battery on board for power failure alert. One alarm voltage output that can be used for siren Packing list: One pcs GA01P alarm box with antenna, One pcs rechargeable battery inside, One pcs sample mini o siren for test GA09 Green terminal for DC5-15V Power input What can GA01P do for vending machine? 1. Monitor the vending machine or game machine power supply. When power supply failure occurs, an alert SMS can be sent (on board rechargeable battery for power failure alert) 2. Connect a switch sensor to GA01P, such as a door magnet switch to monitor the cash box or vending machine door. When the door is illegally opened, an alarm message can be sent (one alarm input) 3. Has an alarm voltage output; when alarm happens, a voltage output is provided that can be used for siren (one voltage output during alarm) Color: As shown Material: Plastic Package Contents: 1 x Intelligent power failure alarm Only the above package content, other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm