1. Material: plastic 2. Purpose: Suitable for cars equipped with anti-theft chip sensor coils 3. How to use, check the automatic lock ring. If the light is on, it means there is no problem with the lock; if the light is not on, it means there is a problem with the lock ring; if the light is on, but the car cannot start, it means there is a problem with the chip. 4. Antenna tester, car lock detection circuit 5. High sensitivity, outstanding effect, good use effect, convenient detection, saving time and effort 6. Weight: 12 grams 7. Packing size: 14x10x1.2cm
