Features:1. You can quickly and easily diagnose whether the ignition system of the car is working properly, avoid fire, and burn out the ignition coil.2. It provides a safe and reliable troubleshooting method that is convenient, economical and time-saving.3. Made of high-quality aluminum material for durability and high quality.4. The ABS head is easy to insert and durable, making it the right choice.5. The internal LED light will show you if the ignition system is normal. Specification:Test Range: Ignition Coil(traditional coil,double spark coil,single spark coil) generator, fan,electric-magnetic valves,emission gas controlling value, fuel injectors,relay.etc.Material: ABSBattery: 2*1.5V AAA battery (Battery not included)Package List:1 * Auto Ignition Coil TesterSafe Operations:1. The car to be tested should park at an area with good air condition, can not suck into exhaust emission from engine.2. The car to be tested should be far away from smoke and fire source;The gasoline engine and chargeable battery is possible to occur explosive air, so it is very necessory to prepare fire extinguish gears accordingly.3. During test process, it is necessory to avoid the moving parts and heat source to protect tester and testing equipments.4. To be far away from the cooling fan of engine.5. Do not put other equipments on the battery which is possible to make the battery inside to be Short, which may cause hurt or damage of tester and equipments.6. Do to turn off the ignition switch before connecting or remove electrical parts.7. Do not leave the car during the test.8. Please confirm the gear position of the car : automatic is at P; manual is at blank; Do push tight of manual brake ; put blocks before the driving tyres9. Please read relative warnings from car manufacturer,pay attention to the important warning information.Instructions:1. To make Pen power signal detector test components, there will be a clignote LED and corresponding spoken language if park run very well.2. With 2 different detectors on high sensitivity test can be power lines.3. About a detector Pen line antenna to specific test results.4. There are about detector Pen model overturned.Used for normal test, are being used to strong magnetic field test..