Battery-powered, low-power alarm with wide input voltage range from 5 V DC to 15 V DC. Each alarm can be configured independently with customizable settings. SMS alerts can be sent to up to 6 pre-registered mobile phones when an alarm is triggered. Features 8 fully programmable input signals; each input port can be set as NC or NO mode for signaling. Ideal for use in home security, warehouse protection, remote monitoring, and unmanned areas. Specification: Condition: New Color: Black Material: ABS Plastic Size: 66 x 62 x 22 mm Package Contents: 1 x GSM Alarm Unit 1 x Antenna 1 x Cable Note: Light and display differences may cause slight color variation between the image and the actual item. Measurement allows an error of +/- 1-3 cm.