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HT25COP Coil-on-Plug and Signal Probe
HT25COP coil-on plug and signal probe can catch the ignition waveform of automobile engine easily.
Warning:
- To avoid injury keep the probe away from moving parts, such as the alternator drive belt and cooling fans.
- To present electric shock do not use if the probe’s sensor plate’s insulation shows signs of damage.
Features:
- Directly measure on the ignition coil easily. Do not need to add extension cable.
- It can be used with normal oscilloscope. Special anti-interference design, high accuracy of measurement.
- Ergonomic design, can be arbitrary curved. Highlight LED which is convenient to operate at night or in dark condition.
Warning:
- To avoid injury keep the probe away from moving parts, such as the alternator drive belt and cooling fans.
- To present electric shock do not use if the probe’s sensor plate’s insulation shows signs of damage.
The ignition waveform is a window, what can we see from the engine combustion chambers when it is running?
- Does the ignition plug needs to be replaced or clean?
- Does fuel injector in electronic fuel injection system wok well?
- Is there any problem in the leakproofness of air cylinder?
- Does the gap between ignition plugs get larger?
- Does the electrode shape of ignition plug become sharp?
- Is there too much oil pollution or carbon deposition on the ignition plugs?
- Does the insulating property of ignition plug get worse?
- Is there any problem in the power supply system of storage battery?
People of Earth
Reviewed in the United States on April 21, 2025
Don't expect a nice fat'n juicy fire line. With this wand you get a relative reading. So far I've tested with a hantek handheld meter, and the hantek 8 channel scope, a little better on the scope but not as good as back probing the coil. It's great for quickly detecting a faulty coil or circuit. Is it worth the hassle of back probing a coil, digging out a scope, finding a decent place for your laptop so doesn't slide into the radiator fan: YES
FR
Reviewed in the United States on January 27, 2024
Your scope should be able to go to 5mv/div or so as pick up the signal from shielded coils. My really cool dual trace tablet scope only went to 50mv/div and did not help but with my Owon scope meter, and my Rigol DHO804 this probe works very well.
Catherine Schneider
Reviewed in the United States on January 19, 2024
Not a consistent signal trace. Have to constantly readjust probe. I was able to get a trace with a penny on top of the cop and a test lead and could not generate a trace with the Hantek cop probe on one of the coil packs. Go figure
ken
Reviewed in the United States on June 8, 2023
Did not pick up a signal on a 4 wire coil overplug.
Paul
Reviewed in the United States on March 5, 2023
Works only according to the amount of shielding on the coil. As I work on a wide variety of cars it's still a worthwhile addition to my kit.
Sic Semper Tyrannis
Reviewed in the United States on March 12, 2023
Results subject to interpretation, works well.Don't waste a battery because the light is a total joke
Bruce
Reviewed in the United States on February 18, 2023
On the COP coils you get a nice clean constant waveform. For the money it can't be beat.
Adolfo
Reviewed in Mexico on January 24, 2023
Me gusto que tiene buen diseño y lo ocupo para mi trabajo
R S
Reviewed in the United States on September 25, 2022
Tested with a Hantek 1008C, and it works as advertised.
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