The portable GSM PIR alarm is a standalone small portable unit. It is suitable for installation indoors and outdoors. When the sensor is triggered by an intruder, it uses internal GSM technology to alert you. This way, you are immediately made aware of a problem that you should know about. The device requires a micro SIM card to communicate with you. The alarm has a built-in program that monitors and keeps the SIM card active. This means you never have to worry about the SIM card and the device being deactivated. Additionally, we also offer this product with 2G or 3G compatibility. Frequencies: 850/900/1800/1900 MHz. LTE bands: B1/B3/B5/B7/B8/B20. Supply voltage: 9 – 24 volts DC – minimum 1 ampere. Power consumption in standby mode: 60 mA max. IP65 certified housing for outdoor installation. 2 ampere relay output. Micro 2G SIM card. No landline required. Dimensions: L100 x W68 x H50 mm. Dimensions of PCB only: L95 x W67 mm. SIM active function. Operating temperature: -10…+40°C. Programming via text/SMS message. Arming/disarming via key fob.