Features & Details
About this item
| Model | HT20COP | HT25COP |
|---|---|---|
| Brand | Hantek® | |
| Interface Type | BNC Connector | |
| Cable Length | 2 Meters | 2.5 Meters |
| Sensitivity | Adjustable via Integrated Wheel | |
| Probe Features | Flexible & Ergonomic Rod | |
| Lighting | High-Brightness LED | |
| Compatibility | Works with Any Digital Oscilloscope | |

Advanced Engine Ignition Diagnostics
Finding hidden engine misfires takes hours of frustrating guesswork. Dirty spark plugs and failing ignition coils ruin engine performance quickly. To solve this, mechanics need a professional coil-on-plug probe to see inside the engine. The Hantek HT20COP provides a clear window into the combustion chamber safely. It lets you analyze fuel injectors and cylinder leakproofness perfectly. Are you upgrading your professional diagnostic garage? Please explore our full Measuring Instrument Accessories collection today. You will find the best tools to speed up your daily repairs.

Why Use the HT20COP Coil-on-Plug Probe?
This professional coil-on-plug probe is ergonomically designed for mechanics. The probe rod can be bent to fit into tight engine compartments. A bright LED light is built into the probe head for working in dark workshops.
Its special anti-interference design ensures precise results. You can use it with any normal oscilloscope to detect problems accurately. The built-in wheel allows you to adjust signal sensitivity for a perfect waveform reading.
Crucial Safety Protocols
⚠️ Avoid Moving Parts
To avoid severe injury, always keep the probe far away from moving parts like the alternator drive belt and cooling fans.
⚠️ Check Insulation
To prevent electric shock, do not use if the probe’s sensor plate insulation shows any signs of physical damage or cracking.
⚡ Real-time EFI Test
Quickly determine if the electronic fuel injection system is working well via clear and stable waveform analysis on your scope.
🔌 Universal BNC
Because it uses a standard BNC interface, this coil-on-plug probe is compatible with all oscilloscope brands for easy connection.
Safety is an absolute priority during high-voltage automotive testing. A professional coil-on-plug probe keeps your hands away from bare wires. The global automotive industry enforces strict electrical safety regulations. You can review the official SAE automotive testing standards for proper diagnostic procedures. Invest in this safe Hantek tool for professional signal analysis.
Product guides and documents
HT20COP User Manual (PDF)FAQs
What safety precautions should I take during diagnostics?
-
Can this Coil-on-Plug Probe work with my handheld oscilloscope?
Yes, the HT20COP features a standard BNC connector. Therefore, it is compatible with any digital or handheld oscilloscope. Consequently, you can view ignition waveforms without any interface issues. -
How do I adjust the sensitivity for better signal accuracy?
There is a built-in wheel located on the test rod. Notably, you can turn this wheel to increase or decrease sensitivity. As a result, you can achieve the most accurate waveform display for specific engines. -
Is the probe rod flexible enough for deep spark plug wells?
Absolutely. The HT20COP is designed with an ergonomic and flexible rod. Specifically, it can be curved to any angle to reach ignition coils in tight engine bays. -
Keep the Coil-on-Plug Probe away from moving parts like belts. In addition, never use the probe if the insulation is damaged. Finally, always ensure the BNC connection is secure before starting the engine.
Hantek HT20COP Coil-on-Plug Ignition Signal Probe with LED
$53.99 – $76.99Price range: $53.99 through $76.99
6–12 Month Warranty
Repair & Refund support available for most products.
Free Worldwide Shipping
Ships within 3 business days.
Taxes & Duties
Buyer responsible for local import fees.
24/7 After-Sales Support
Technical assistance & video guidance within 24h.
Hantek HT20COP Coil-on-Plug Ignition Signal Probe with LED
$53.99 – $76.99Price range: $53.99 through $76.99
Features & Details
| Model | HT20COP | HT25COP |
|---|---|---|
| Brand | Hantek® | |
| Interface Type | BNC Connector | |
| Cable Length | 2 Meters | 2.5 Meters |
| Sensitivity | Adjustable via Integrated Wheel | |
| Probe Features | Flexible & Ergonomic Rod | |
| Lighting | High-Brightness LED | |
| Compatibility | Works with Any Digital Oscilloscope | |

Advanced Engine Ignition Diagnostics
Finding hidden engine misfires takes hours of frustrating guesswork. Dirty spark plugs and failing ignition coils ruin engine performance quickly. To solve this, mechanics need a professional coil-on-plug probe to see inside the engine. The Hantek HT20COP provides a clear window into the combustion chamber safely. It lets you analyze fuel injectors and cylinder leakproofness perfectly. Are you upgrading your professional diagnostic garage? Please explore our full Measuring Instrument Accessories collection today. You will find the best tools to speed up your daily repairs.

Why Use the HT20COP Coil-on-Plug Probe?
This professional coil-on-plug probe is ergonomically designed for mechanics. The probe rod can be bent to fit into tight engine compartments. A bright LED light is built into the probe head for working in dark workshops.
Its special anti-interference design ensures precise results. You can use it with any normal oscilloscope to detect problems accurately. The built-in wheel allows you to adjust signal sensitivity for a perfect waveform reading.
Crucial Safety Protocols
⚠️ Avoid Moving Parts
To avoid severe injury, always keep the probe far away from moving parts like the alternator drive belt and cooling fans.
⚠️ Check Insulation
To prevent electric shock, do not use if the probe’s sensor plate insulation shows any signs of physical damage or cracking.
⚡ Real-time EFI Test
Quickly determine if the electronic fuel injection system is working well via clear and stable waveform analysis on your scope.
🔌 Universal BNC
Because it uses a standard BNC interface, this coil-on-plug probe is compatible with all oscilloscope brands for easy connection.
Safety is an absolute priority during high-voltage automotive testing. A professional coil-on-plug probe keeps your hands away from bare wires. The global automotive industry enforces strict electrical safety regulations. You can review the official SAE automotive testing standards for proper diagnostic procedures. Invest in this safe Hantek tool for professional signal analysis.
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