... lock system13) Compatible with any carsII) SpecificationIndustry class GSM ModuleVoltage: 9 to 12V/DCMain unit static current: 35mAAlarmConversation ... degreeKeeping Temperature: -20 degree to 85 degreeIII) kitsA GSM main panel, a GSM Antenna , a shock Sensor , a relay, a ... bundleof 20 PIN harness, a SOS Button , two remote controllers , a Siren economical gsm ...