Features:
It can be used to check lock loop.
Auto lock inspection loop auto car key lock chip antenna tester.
if have light on but can't start car, means the chip have problem.
Auto lock inspection loop is indispensable for locksmith or key programmer.
Checking auto lock loop, if light on means the lock no problem; if no light on means the lock loop have problem.

Specifications:
Type: Coil Tester
Material: Plastic
Color: Red
Fitment:
For Mercedes 1998-2014
Size: (D x L x inner D)about 66 x 80 x 45mm/2.60 x 3.15 x 1.77inch

Package Included:
1 PC x Coil Tester

Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 0.5-2 cm differences due to manual measurement.