Applicationt: 
Benz, BMW, VW&AUDI
Production Description:
EZS key checker can fast check the keys and the chunks working or not,it's auitable for Benz,Bmw,VW&AUDI cars.
BENZ
Suitable for :Triangle key
1,Put the checker on the lock;
2,Insert triangle key to lock;
3,Flashing light is all the time:both key and check are ok;
Flashing light is on ang then off:chuck is ok,key is bad;
Flashing light on but still can not start the car:Please check whether the steering wheel,or the key is bad;
No flashing light:chuck is bad
BMW
Suitable For:Diamond key and inhaled key:
Diamond key: two methods on the basis of vehicle system.
VW&AUDI: Suitable for inhaled key