12V gasoline vehicle-specific spark plug detector: Dual-hole synchronous measurement, simulating engine operating conditions, intuitively displaying ignition performance, compatible with multiple types of spark plugs. Wide frequency compatible with different engine displacements. Protective cover protects the equipment. Simple operation. It is a practical tool for auto repair shops and car owners to quickly identify ignition faults and save costs.

The car's ignition is not smooth and the power is weak? Just add a DY28 spark plug tester, which is the "ignition health manager" for 12V gasoline vehicles.
It is equipped with dual spark plug interfaces (compatible with mainstream models of 12mm/28mm), supporting simultaneous detection of two cylinders, and efficiency is directly doubled. The knob can be adjusted to simulate speeds ranging from 500 to 6000 rpm, accurately reproducing the engine's different working conditions, and easily measuring the spark plug's ignition strength and stability - the flashing frequency of the HV indicator light is the "intuitive physical examination report" of ignition performance.

The car's power drops, the idle speed fluctuates, and the fuel consumption inexplicably increases? The problem is likely to lie in the spark plugs - this "ignition core" hidden inside the engine, whose condition directly determines the power output. And with the addition of the DY28 Spark Plug Tester, it is a professional tool specifically designed to address such pain points.
As a diagnostic device specifically designed for 12V gasoline vehicles, the most intuitive advantage of DY28 is "synchronous detection of two holes": The top of the machine is equipped with 12mm and 28mm spark plug interfaces of various specifications, covering the spark plug models of the vast majority of vehicles on the market. It can simultaneously test two spark plugs, increasing the testing efficiency by 50%, and is particularly suitable for batch maintenance in auto repair shops.
The operation logic is even "dumb-bell friendly": After plugging in the power supply, insert the spark plugs into the corresponding interfaces, cover the transparent protective cover (with a high-voltage warning design, the cover cannot be removed without plugging it in, eliminating safety hazards), and turn the knob to adjust the simulated rotational speed from 500 to 6000 rpm - this range almost covers the entire working conditions of passenger cars from idle to high speed, accurately reproducing the spark plug's firing performance under different loads. At this time, observe the flashing state of the HV high-voltage indicator light: If the firing frequency is stable and the brightness is uniform, it indicates that the spark plug is in good condition; if the flashing is choppy or the brightness is weak, it means that the spark plug is severely worn or the ignition performance has declined, and it needs to be replaced.
Its "simulated engine operating conditions" function is a core highlight that distinguishes it from ordinary detection tools: Traditional manual detection can only observe "static firing", while DY28 can simulate the ignition frequency during the actual operation of the engine, allowing you to see the performance of the spark plug in the "real working environment", avoiding "normal static, failed dynamic" misjudgment.
The design of the transparent protective cover is also very considerate: It can isolate the high-voltage arc to ensure safety and clearly observe the color and intensity of the firing (a healthy firing should be blue-white, if it is red, it indicates insufficient ignition energy), making the fault diagnosis more accurate.
From professional auto repair technicians' maintenance to DIY troubleshooting by car owners, the DY28 Spark Plug Tester can handle it all: It has no complex parameter settings and the plug-and-use feature makes it easy for beginners to quickly get started; Its compact body (portable design) is also convenient to carry with the car, allowing for immediate detection of the ignition system status.
For those who pursue "precision and efficiency", it is a powerful assistant for improving diagnostic efficiency; For car owners who value vehicle maintenance, it is a "money-saving tool" for detecting ignition faults, avoiding power loss and fuel consumption increase - a DY28 makes the health status of the spark plugs "visualized", and ignition faults can no longer hide.