Single Channel GSM SMS Alarm Box. Home Security System. Features: Power Input: DC5-15V Backup: Onboard Rechargeable Battery for Power Failure Alert Inputs: One Alarm Input (Triggers when shorted to GND) Outputs: One Alarm Voltage Output (Connectable to external siren) Alerts: Supports SMS Alarm and Phone Call Alarm. Messages sent to up to 6 preset mobile numbers. SMS content is customizable. Design: Compact size for easy mounting on system boards. Applications: Suitable for monitoring power supply status in vending machines or game machines. Enables connection of switch sensors or door magnets to monitor access points such as cash boxes or machine doors. Utilizes voltage output to activate sirens during alarm events. Specifications: Model: GA01P Color: As shown Material: Plastic Package Contents: 1 x GA01P Alarm Box with Antenna 1 x Rechargeable Battery (Installed) 1 x Mini Audio Siren Note: Item color may vary slightly due to lighting and display settings. Measurements may have a tolerance of +/- 1-3cm. Only items listed are included.