Question 1

Is this top of line ?

Accepted Answer

It's, as far as I know, a unique product. No-one else makes anything quite like it (as a handheld, one-box solution). I've got one, and it's a fantastic time-saver. I can do a quick look at four cylinder's worth of ignition waveforms in twenty seconds.
To do the same thing with my Snap-On Verus (five grand's worth) takes five minutes to boot, then a couple of minutes to find and plug up the adaptor, then another minute to configure the scope mode. And I gain little or nothing more by doing it with the Snap-On tool than using the GTC product.

Question 2

Will this work on a single cylinder lawnmower engine to read rpm? If so what setting would you use?

Accepted Answer

The problem is that when the unit is in tach mode it reads the wrong RPM’s because you you can not set it for the number of cylinders that your engine has. It’s permanently set for “8” cylinders with no way to change it to “1”, “2”, “4”, or “6” cylinders so that the tach function will read correctly. You have the option of setting the unit for a 2-cycle or a 4-cycle engine so why can you not set the number of cylinders?

Question 3

Does this product have a warranty besides the 4yr protection plan?

Accepted Answer

Yes, the GTC505 comes with General Technologies Corp's standard product warranty, which lasts 1 year (from date of purchase). Please visit the GTC warranty page for details https://gtc.ca/warranty.html

If you have problems after the warranty period, please contact the manufacturer, as GTC can often provide replacement parts, or repairs.

Question 4

Can this be used to set ignition timing instead of a timing gun?

Accepted Answer

Nope.  There is no strobe to illuminate the timing marks on the vibration damper.

ASIN	B001TD5JYE
Best Sellers Rank	#598,058 in Automotive ( See Top 100 in Automotive ) #68 in Ignition Testers
Brand Name	GTC
Customer Reviews	4.4 4.4 out of 5 stars (339)
Global Trade Identification Number	00833303000688
Included Components	GTC505, flexible probe, coil on plug pickup, spark plug wire pickup, USB micro cable, AC adapter, user manual
Item Type Name	GTC505 Engine Ignition Analyzer
Item Weight	0.01 Ounces
Manufacturer	GTC
Manufacturer Part Number	GTC505
Manufacturer Warranty Description	1-year parts and labor warranty, please see manual or manufacturer website for details, instructions, and exclusions.
Model Number	GTC505
Operating System	RTOS
Power Source	Handheld
Screen Size	3.5 Inches
UPC	833303000688

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

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