Brand New Spark Plug Tester Ignition System Coil Engine Autos Adjustable Ignitio

Description:
Length: 115mm / 4.53in ; Diameter: 22mm / 0.87in ; Cable Length: 520mm / 20.47in; Color: Black ; Weight: 96g / 3.39in
Perfect diagnostic tool for accurately identifying a weak spark in minutes, simple to use, test for no-start conditions
It is the resistance to spark 10k, 20k, 30k and 40k ohms, white lettering can make you read the gap measurement easier
Groud the clip to the engine. Put the other end in the spark plug wire. Read the length on the spark through the little window. The longer the spark gap the stronger the coil
The standard plug wire tip and can be unscrewed so the tester can be used on small engines and some motorcycles.
Features:
According to spark color and flash over distance to determine the quality of the coil.
Can intuitively convenient to understand the operation of the ignition coil.
Alligator clip securely fastens to ground.
Screw assembly adjusts spark gap quickly and easily.
Avoid fire, the ignition coil burned out and so on.
Specification:
Length: 115mm / 4.53in
Diameter: 22mm / 0.87in
Cable Length: 520mm / 20.47in
Color: Black
Weight: 96g / 3.39in
Package Weight : 96 G / 3.39 Ounces
Package Dimensions (L*W*H) : 190*75*25 MM / 7.48*2.95*0.98 Inches
Package Include:
1 x Adjustable Ignition Coil Tester
Note:
1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. 
2.Please allow 1-2cm measuring deviation due to manual measurement. Thank you!