Features
1.Unlock and disarm by RFID full automated
2.Lock and arm by RFID full automated
3.Warning if car door not to be closed rightly
4.Included all normal alarm system’s functions
5.Personal emergency override code programmable
6.Remote trunk release
7.Match central locking system
8.One-key Start Engine for Cars 
9.Smart Key which can hold a spare key
10.Intelligent anti-hijack function with ID detection

Difference with other 2 models please see details as below:

 

	BD-4007	BD-4008	BD-4009
Remote control type	Normal and RFID smart key	Normal and RFID smart key	Normal and RFID smart key
Spare key inside	No	Support	Support
Control Distance	20M	20M	20M
Auto working distance	2M	2M	2M
Auto lock and unlock	Support	Support	Support
Car start driving lock	Support	Support	Support
Engine stop unlock	Support	Support	Support
Alarm type	Passive	Passive	Passive
Trunk release by remote	Support	Support	Support
Remote start engine	Support	Support	Support
Password protect	No	No	Support
Oil stop	No	No	Support
Auto close windows	No	No	Support

Specifications
1. Engine start stop button≤0.6mA
2.LF Antenna's Distance:≈2.0m 
3.The average current of LF antenna in working situation≤30mA&12V
4. Working voltage of main unit: DC10.0V~DC15.0V
5. Working voltage of transmitter: DC2.0V~DC4.0V
6. The current of transmitter in sleeping situation≤4uA&4V
7. LF: 134.2KHz      UHF: 433.92MKz
8. Working Temperature:-40°c~+85°c