... Car Alarm System Features: 1) New two-way TFT LCD code-jumping transmitters 2) High and Low temperature resistant: -30oC to 85oC 3) Basic ... function: Mute, trunk release, anti-carjacking, keyless entry, emergency call and car locator 4) Remote ... pre-set temperature 7) The temperature in the car can be shown on the remote controller 8) ... battery 13) Date setting Two-Way Car Alarm System