Features:
1. Works on all spark ignition engines by selecting engine type using S1 and S2 buttons.
2. One is to be wrapped around a for spark plug wire and the other is a ground wire.
3. Wide operating temperature range.
Purpose: to measure speed
Voltage: 3 (V)
Power: 0.002-0.03 (W)
Size: about 52*46.8 (mm)
Colour: Black
Applicable models: Motorcycle lawn mower
Display screen: LCD screen display
Battery life: 2-3 years
Power supply: Inductive design, only need to tie the connection cable to the spark plug to work 
