TA100

Great device. Great for ignition wire kilovolt testing. I also used it to verify my in-dash tachometer reading (turns out my in-dash tach is not that accurate). It's light and very easy to use, just hold it over the distributor cap and the RPMs pop up. It can also be used with distributorless systems (I believe all you need to do is to set it to 2 cycle if your engine uses a waste spark system). I needed to diagnose a vibration in an older GM car and the diagnosis required an accurate RPM reading. The SmarTach was key. I would imagine it would also be a great aid if you need to set idle speed or any kind of RPM dependent work. There are no wires to set up. It really is a smart diagnostic tool. Works with 2 to 12 cylinder engines, 2 cycle and 4 cycle.

I bought this to service and tune up chainsaws. The case is tough. The unit itself is very durable. Works exactly like the demo video in the listing. Very easy to use. Turns itself off after a minute of idle time (which is good for battery life). The reset button allows you to quickly get and clear your highs for carb adjustments on two strokes. Amazon has the lowest price by a long shot. Highly recommended.

This a very nice unit. It is currently in use at an outboard motor shop and replaced an older model that still works very well. This newer model has a much better antenna and the device seems more sensitive which is nice. I have another one that I have used on my motorcycles. A very nice unit. I gave it 4 starts as the case was missing the right plastic slide lock.

Sweet, it works on any small engine. It's so nice that it works from a distance or up close. 2 cycles are hard to tune, but with this makes it easy. Lawn mowers you can use to adjust the governor idle speed. Really responsive, gives you Max/min RPM. Perfect for the small engine shop.

Seems to work well. Easy to use. I kind of expected to solve my auto problem and have more uses for it but ... it really didn't work out that way. It's kind of a lot of money for limited functionality. It's been a while since I used it, believe it only works on DC, that would make sense. But it could be the other way around.

This is the best tool for small engines and ignition issues in cars and trucks. Its easy to use and accurate.

Seems like a very solid unit for work on my chainsaws. The probe works while spanning the spark plugs wire or from a distance of a few feet while tuning. The refresh rate is pretty decent compared to the cheaper units

I use this tachometer primarily for small engine (2 and 4 Cycle) testing and repair where my optical tach is impractical to use. On a few occasions, I have used it on V6 automotive engines. It worked well in all cases. Also, I have found it to be considerably more accurate than others of similar design. In fact, I returned another manufacturer's much less expensive model because of unstable, inaccurate readings. The TA100, so far, seems t be accurate and having the Peak kV feature can provide some insight when troubleshooting. The case is plastic, and unfortunately, uses a cheaper "living" hinge rather than a proper pinned hinge, and may split over time.

Case provides good protection, and unit works well. Also useful to establish baselines re: ignition voltages for units working properly, for future troubleshooting reference. A must for synchronous generator set up to ensure proper hertz output. Feels nostalgic, because it feels solid and high quality.

I'm a small engine builder and repairer, lawn mowers, chainsaws, blowers, strimmers etc. I'm so glad technology has moved on and created such an amazing diagnostic tool. It is simplicity in itself. No wires to connect up, no messing with having to earth electrical parts. The most common problems with small engines is they rev so high, particularly 2 stroke engines used in chainsaws, strimmers, blowers etc. Poor starting, poor running, engines that die on idle can be a problem to diagnose. Engines that are 2 plus years old do suffer from ignition module (coil) deterioration. They are ok at high rpm but die out lower down the rev range. Most people make the mistake of resting the spark plug on the engine's metal block, turning the engine over, seeing a spark and assuming the coil is fine. NOT SO. Once fitted in to the engine and under compression any weak spark will be extinguished by cylinder pressure. By simply resting the antenna on the HT lead with the "HT Voltage" option selected, you can clearly see how much voltage is being generated by the engines ignition coil. If its weak or none at all it will be clearly displayed on the digital screen. You can also if the engine is running but poorly, see the input/output voltage fluctuate. It will also indicate low voltage at idle causing the engine to die. After fitting a new coil, you can get a min - max output from its memory. RPM Setting : Generators in particular have a max engine speed set by the manufacturer for good reason. Although most have electronic switchgear to prevent excess voltage output, these systems are NOT always reliable. The amount of times owners have raised the engine speed in the belief it will generate more voltage then have the problem of burned out wiring or the overload trips keep tripping out is very common. You can set the engine speed as set on the ID plate on the engine. Mowers, strimmers, chainsaws, blowers have MAX RPM also for good reason. Engines that rev way beyond those specified by the manufacturer can explode, more often they wear out prematurely. It's a must for 2 stroke engines, most have very specific minimum (idle) and maximum (full throttle) engine speeds. The maximum in some cases can be as high as 10,000 rpm on 2 strokes, 3,250 on most 4 stroke engines. No messing about with 12v supply, winding an impulse wire round the HT lead like my old diagnostic tool. Simply select "RPM" mode, the number of cylinders, 2 or 4 stroke and point the antenna at the HT lead. It will give you and IDLE RPM and MAX RPM, it will save both to its memory and display until you press the "CLEAR" button. A SUPERB BIT OF KIT WELL MADE WITH ROBUST RUBBERISED CASE, RELIABLE AND ACCURATE, WORTH EVERY PENNY

Came in record time and works great!!

Sometimes hard to get a accurate reading on small engines.Fortunately this model records the low rpm reading which is accurate

Glad I bought this smart tach! Very useful for my small engine repair shop. Also useful for cars and trucks too as long as it’s not diesel ofcourse. It goes from 1 to 12 cylinders and you easily find the faulty one without wasting time on the others. Great Canadian product!