We are manufacturer of car security system since 1997,and CE,FCC,ISO9001 approved. LD007 MAIN FEATURES: 1,Remote lock/unlock2,Central ... -40 to +80 degrees Celsius12. Operating humidity ≤75%More new remote controllers are available for this model.Zhongshan Nengtong Burglarproof Electronic ... provides 24h quality after sales service for customers. Basic Model Remote control central door lock system