Fiada Compression Tester Kit 9-Piece — Blue 0–300 PSI Gauge with Spark Plug Probe, 14" Hose

The Fiada 9-piece tester kit combines a 3-inch 0–300 PSI compression gauge with universal adapters and a spark plug probe so you can diagnose combustion and ignition issues yourself.

This compact kit brings compression measurement and spark-signal testing into one organized case, letting mechanics and DIYers quickly inspect cylinder health and ignition performance across cars, motorcycles, ATVs, snowmobiles and light marine engines. The kit pairs a shock-protected dial gauge with straight and curved rubber cones, four brass fittings and a spark probe to give broad vehicle compatibility and clear visual feedback.

How do I use the Fiada compression gauge safely and accurately?

Follow basic engine-prep steps to protect the tester and get repeatable readings: disable fuel and ignition, remove spark plugs, and thread the gauge into the plug hole by hand. Crank the engine a few revolutions with throttle depressed until the gauge stabilizes, then compare peak pressure to the engine’s specifications.

• Disable fuel pump/fuel injection fuses and disconnect ignition wires before testing
• Hand-thread the proper adapter until snug to avoid damaging threads
• Crank engine four revolutions for reliable peak pressure readings
• Record PSI and kg/cm² values from the dual-scale 3" dial

What vehicles and spark plug types will this kit work with?

The Fiada kit is built to be broadly compatible: brass adapters and rubber cone ends accommodate most spark plug hole sizes and odd angles found on cars, light trucks, motorcycles, ATVs, snowmobiles and small boats. The 14-inch extension hose helps reach recessed plugs and tight engine bays.

• Includes straight and curved rubber cone adapters for angled plug wells
• Four brass threaded fittings to match common spark plug thread sizes
• 14-inch hose extends reach to recessed cylinders and inline engines
• Useful for gasoline engines across many makes and models

How does the spark plug tester probe help pinpoint ignition issues?

The spark probe visually reveals whether high-voltage current reaches the plug under cranking conditions. If the probe shows a consistent spark, the ignition system is delivering voltage; inconsistent or absent sparks indicate faults in plugs, leads, coils, or timing circuits.

• Quickly displays presence or absence of spark under load
• Helps isolate bad plugs, fouled connections, or coil failures
• Safe visual check when used with ignition and fuel systems disabled properly
• Works alongside compression checks to separate mechanical from ignition faults

What features protect the gauge and make readings easy to read?

The 3-inch instrument features a dual-scale 0–300 PSI and 0–20 kg/cm² dial with an anti-scratch cover and rubberized housing to absorb bumps. The entire kit is stored in a fitted ABS case so fittings remain organized and protected during transport and storage.

• Large dual-scale dial for fast reference in PSI or metric units
• Rubber protection around the gauge minimizes shock damage
• Anti-scratch lens keeps the face readable over time
• ABS storage case secures adapters, hose, and spark probe

Who is this for? The Fiada 9-piece Compression Tester and Spark Plug Tester is aimed at home mechanics, small-shop technicians, and vehicle owners who perform routine diagnostics and troubleshooting. It suits users who want a single, portable kit to evaluate cylinder compression, identify ignition faults, and compare readings across cylinders without relying on dealer tools. If you need a durable, easy-to-read gauge set with wide adapter compatibility and a compact case for garage or field use, this kit delivers practical diagnostics and visual spark verification.

Safety note: always follow engine shutdown and isolation steps before attaching or removing test equipment. Do not touch live circuits while ignition is engaged.