... will display on your mobile phone.It can be used as tracking cars, company vehicles, buses, taxis, trucks ... is -20 0C to 60 0C, over this range the specification maybe can not reach the standard level, ... off to enlarge battery life- Shock sensor can be used as car shock & move alarm- Visit our ... Power supply disconnect alarm- It is easy to hidden, used for tracking cars, bus, taxi, rent cars, moving ...