About this item 

• Ignition Timing Light: Design to re-timing your car's ignition to get the best performance that you can. Suitable for car, vehicle motorcycle, marine,all two-stroke and four-stroke gasoline engines, easily operate on 12V ignition systems 
• Handle Pistol-type design:Ergonomically designed with comfortable press keys, great Press feeling and easy operation. And the high quality makes it be worn hardly. 
• Sensor Clips: The sensor clip is red and black to distinguish positive and negative poles, easy to use and more secure. It's sliding clamp-on inductive pick-up, for easy and safe hookup. 
• Advance Function: Capable of testing the ignition timing scale on the engine flywheel or belt pulley intuitively to adjust appropriately.Able to detect the automotive knock suppression control system and vacuum advance angle control system, change its advance angle with the speed change. 
• Attention: The power supply is 12V with red connecting to positive and black to negative. The high voltage wire induction clamp is clamped on the high voltage line of cylinder with the arrow on the induction clamp pointing to the direction of the spark plug for normal working.