Equus Compression Tester
- Large, easy-to-read 2-1/2" dial face with dual-calibrated and color-coded scales
- Universal rubber nose cone fits all spark plug openings
- Heavy-duty, presision Bourdon tube meter movement
- Complete illustrated instructions included
Works on conventional, electronic and computerized Domestic and Import vehicles.
Helps to measure the efficiency of parts that affect cylinder pressure.
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