Large easy-to-read gauge with SAE and metric readings
Checks cylinder compression from 0-300 PSI (0-21gm/cm2)
Works on most domestic and foreign engines
Equipped with air-hold valve and gauge reset button
Fits 14mm and 18mm spark plug threads

Technical Details

Size (LWH): 12.1 inches, 8.4 inches, 2.4 inches
Product Details
Product Dimensions: 12.1 x 8.4 x 2.4 inches
Shipping Weight: 2.2 pounds (View shipping rates and policies)
ASIN : B009UP9SKO