Wireless fixed network/GSM alarm system CAT Catalogue Description 3: Wireless alarm system with fixed network connection and SIM card slot. If the system detects movement, it selects preset telephone numbers and it will play back a recorded message with a length of 10 seconds provided the call is taken. CAT Catalogue Description 4: Can be used via the landline and mobile networksCan be extended with additional, wireless security accessoriesThe components are already paired for easy installationPreset telephone numbers that are called as soon as an intruder is detectedAllows the recording of a voice message with a maximum length of 10 secondsWireless systemZones: 99PIR (passive infrared) Dimensions L x W x H: 185 x 130 x 27 mm Batteries: 4 x LR6/AA / 2 x CR2025 (Supplied) Colour: White Detector angle: 110 ° Frequency: 433 MHz Sound: 95 dB Voltage: 230 VAC