NEO TOOLS Compression Pressure Gauge with Adapter Set 0-20 bar / 0-300 PSI

This compression pressure gauge with adapter set is an essential diagnostic tool for petrol engines, delivering accurate readings across a 0-20 bar (0-300 PSI) range to quickly pinpoint worn piston rings, leaking valves, or head gasket failures. The analog gauge features a clear dual-scale dial protected by a durable rubber boot, while the 300 mm reinforced rubber hose and quick-release coupling provide convenient access to spark plug wells. A built-in pressure release valve simplifies repeat testing, and the eight-piece adapter kit covers common thread sizes (M10x1.0, M12x1.25, M14x1.25, M18x1.5) for broad compatibility.

Advantages

This set offers exceptional versatility with its eight adapters, rigid pipe extensions, and blow-molded storage case. The gauge's ±2% accuracy ensures reliable diagnostics, and the rubber boot protects against drops and impacts. The quick-release coupling speeds up cylinder changes, while the pressure release valve allows safe, rapid depressurization between tests.

Suitable for

• Automotive petrol engines
• Motorcycles and scooters
• Small engines (lawn mowers, generators)

Key specifications

• Measurement range: 0-20 bar / 0-300 PSI
• Gauge diameter: 63 mm
• Hose length: 300 mm
• Number of adapters: 8
• Spark plug threads: M10x1.0, M12x1.25, M14x1.25, M18x1.5
• Accuracy: ±2%
• Includes rigid pipe adapters and blow-molded storage case

Recommendations

For accurate readings, ensure the engine is at operating temperature and the throttle is wide open during the compression test. Compare readings across cylinders to identify variations.