GTC GTC505 Engine Ignition Analyzer - Spark Diagnostics and Tachometer Readings for Marine, Motorcycle, and Automotive Mechanics, General Technologies Corp

I had this tool now for a while I'm impressed with it it works very well. It's great for a quick run and gun misfire chase down it's well worth the money. A great product from Canada! I'm sure this is a US seller support the US in Canada! The build quality is great the functionality is awesome! I think the price could be a little better but it's worth the money!

I love this tool it’s quick and efficient

Pros:This tool is very well designed with a robust case and solid plastic buttons that have a quality feel when pressed. The software is innovative and provides useful modes and views as described in GTC materials. It is great to have a tool that features probes for BOTH spark plug wires and coil on plug (COP) systems. When using "tachometer" mode, the RPMs are fairly stable both in chart and digital view. This is a really big plus.Cons:In chart view, the highly variable secondary spark voltage jumps around and you have to visually ascertain an average value. You can estimate an average kV by comparing real-time kV readings to the y-axis label values. It would be best if in digital view, the average kV was shown in addition to min and max. Not a serious problem though. Spark plug kV will jump around a lot because of real-time changes in resistance at the plug, timing changes, etc.On the tool I received, the BNC female connector for the gooseneck probe on top of the unit fits somewhat loosely and its weight can make it rock back and forth a bit. In my opinion this can eventually loosen the inner conductor sleeve of the female BNC and maybe lead to intermittent connections. BNC connectors can have this problem, for example when matching 75 ohm connectors to 50 ohm connectors. Fortunately conventional coax cables with BNC male connectors are lighter in weight than the gooseneck probe and they do seem to fit more snuggly. You can get a 3 to 6 ft flexible coax cable with male and female BNC connectors and fix the probe to the end of the cable to use as a test wand. Alternatively, GTC makes a 2 meter flexible coax cable that accepts all the probe tips, and gets around the problem of a loose fitting gooseneck probe. It also has a locking spark plug wire probe. The part number is GTC505-CSC and you can order it directly from GTC for a reasonable price. If your gooseneck probe fits loosely to the BNC connector on top, I would definitely get a coax extension cable or the GTC505-CSC. Amazon should stock this accessory. Otherwise it appears to be a very fine tool and worth the cost.

Awesome tool!!! my RECOMMENDATION FOR SELLER AND PRODUCT.Working well, fast diagnostic, easy for handling, display big enough, buttons well, also completely is quality build, intuitive software...and so on.Only one objection, extension cable to be included in kit, and maybe bigger box.

Received the tool with missing COP sensor and spark plug wire sensor. I looked up the missing parts on the GTC website and bought them through the GTC website. Never heard back from them. I contacted them, but never hear back anything from them. I could return the tool and re-order. But, am very concerned about getting the same exact one. The tool looks very great but am still not sure since I still can’t se it.

Works

It’s far more advanced than the cheaper spark testers that only show yes you have spark or no you don’t. I’ve been looking for something to indicate spark strength in KV, and intermittent misfiring, this does just that at a fairly reasonable price.It’s a little complicated. I’ve used it a few times, I’ve found using either graph or digital kv works for me.Cons: the case is good but if it was just a little bit bigger it would be easier to fit everything and I could leave a probe tip attached. I might try leaving the charger out or finding another case.

I wanted to LOVE this thing. I saw it on YouTube and had to try it. I'm auto tech for 40 years and wanted to add this to my on-the-go, roadside troubleshooting kit. I have a lot of scopes and secondary ignition pickups from multiple makers, but firing up a scope & hooking probed up takes TOO MUCH TIME! The GTC505 looked like a time saver, but it is too glitchy, often couldn't even get stable RPM. I returned it.The GTC505 feels solid, has some weight to it, nice protective boot like a multimeter, bright & clear display, and very easy user interface. The firmware offers lots of options for testing; all in a convenient little package that tech can deploy as fast as a test light. THE PROBLEM IS, it is just as glitchy picking up signals as all my other scopes, so i don't need it.I have PICO, SNAP-ON, HANTEK, TEKTRONIX and more. I get the best waveforms from my analog scopes like TEKTRONIX and SENCORE, but they are impossible to use on a mobile call; SHOP ONLY.I tested a dozen or so cars with GTC505. The cars were all running fine. There were COP, Waste spark, one chevy V8 with distributor, and mix like 2000 Sienna V6 x3 combo COP + x3 waste spark. GOOD STUFF. It would take forever to detail results, so I'll say the performance of GTC505 did not surpass my other gear, so not worth the money TO ME. If i got predictable and stable waveforms 75% of tests, i would have kept it. But the waveforms and even RPM useless in many cases, so WASTING TIME. I'll keep pulling out the HANTEK and assorted probes for now.