• Works with any gas engine up to two cylinders and 16,000 RPM
  • Adjustable input for all types of ignitions, including fuel injected engines
  • Hour meter shows total hours accumulated; hour/tach meter shows RPM's when the engine is running
  • Easy installation; no power or ground required
  • Internal battery lasts up to 10 years
  • Instillation wire is 14 inches long

Engineered & Assembled in USA. Intuitive to use. Works great, even on the newer chainsaws which produce 2 pulses per revolution, or use coil-on-plug ignition, or even breaker-point ignition; yet still accurately displays RPM. Black plastic case. Epoxy potted Lithium (non-serviceable) battery, rated 10-year life. Unit is smaller than photos convey. Tie-strap it to anything, to monitor lifetime run hours (non-resettable, so your workers cannot tube you). Generator. Chainsaw. Leaf Blower. Line Trimmer. Lawn Mower. Snow Blower. Motorcycle. Capable of either 1 or 2 cylinders. 2-stroke, or 4-stroke (configure). Why buy the very same unit in a grey plastic case, with model number ED-9 as sold by a saw manufacturer for $79.99 (whose name kinda sounds like the metal “steel”), when you can get it in black, shipped for free from Amazon for only $27.25 + sales tax ? Displays RPM in realtime (up to 16,000), and peak RPM (resettable memory). Buy it. An excellent value!

Installed this on my Honda 2200EU (2018 model!) as the one built in is very basic and goes in increments of 100 hours. This one is nice, easy to installed, as instructed wrapped around the spark plug wire, it also detects the RPM. I checked the Honda manual and it showed the RPM should idle around 2800 in energy saver mode which it appears to pick up. I used self tapping screws to go into the plastic by the handle. I've seen people install on the inside of the generator too but it would need a bracket, it fits nice on the outside and looks factory.

I now own 4 of these high quality, really handsome, one-wire Tach/Hour meters, that were easily installed by either a drill-and-screw-on -or- peel-and-stick-on placement. Sadly, I wasted $$ on other Tach/Hourmeter brands sold here in this price range (and much cheaper) that all have wildly inaccurate Tach readings, less features and, I now know are not as classy looking as the HR-8061-2. After not being able to get stable or accurate Tach readings on those "other" poor performing units, even after trying other selectable firing intervals, 2, 3, 4, or 5 turns of the sense wire neatly coiled around the sparkplug wire, in BOTH directions from the sparkplug(!) I finally tried this more expensive HR-8061-2 meter. This Hardline Products device shows (engine stopped) with press-and-hold in Tach mode the Max RPM -or- with a press-and-hold in Hours mode the "Number of engine starts", with the MaxRPM being able to be selectively reset each run time by just continuing to hold down the meter's single button. Installed when new on my 4 year old log splitter before ever starting it showed 71 engine recoil starts, reminding me how many days of work and juice/water breaks I took. On my 4-stroke engined weed wacker, besides being priceless to keep track of the run times for engine oil changes, the maxRPM showed 9,860! One unit on each of my orange 2000W and yellow 3100W Inverter Generators ACCURATELY shows a stable, unchanging RPM reading when the engines are running steadily under a load. Being that you can access the hour reading (say, 48.1) with the engine running, re-fueling or oil change due data can be recorded or acted upon. As a 70-something retired career MotorCycle (Car/Truck/PowerEquipt) mechanic, take my word for it, this is the ONLY Tach/Hour Meter you should invest in.

This is a must have for anyone who owns a dirt bike. I installed this on my 2015 kx450 and it took me about 30 minutes. It would have taken less time but my gas tank is a pain to take off so I installed it with not taking the tank completely off, so it was a tight fit to get my fingers in there. I recommend using electrical tape and 2 zip ties when wrapping the wire around the spark plug. Use the tape first and then the zip ties. Hardline makes great hour meters for great prices. I also got the tank mount for this and it looks clean and professional. I couldn't be happier.

This looks just like the Stihl EDT 9, which comes with a short 6" lead that works as a wireless 'antenna' and picks up the chainsaw RPM if the antenna is held 4-8" away from the spark plug. The Hardline tach comes with a longer lead that is supposed to wrap around the plug wire, so I cut 6" off the long lead and put that short section in the tach. This succeeded in achieving a truly wireless RPM reading when holding the DIY antenna a few inches away from an Echo SRM-210 weed trimmer and Stihl MS-250 chainsaw. Hardline apparently doesn't advertise this feature, perhaps because it only works with certain types of equipment and is presumably prone to displaying erroneous readings if the signal isn't strong enough. I was ready to buy the Stihl EDT 9 but opted for the Hardline because Amazon could ship it to me quicker. Only after receiving the Hardline did I notice the housing looks exactly the same as the EDT 9, so I apparently saved $50 by accident. Having a cheap tachometer probably saved me a lot of money in avoiding the Stihl service shop to get my MS-250 running properly. The chainsaw operator manual is vague in describing how to get the idle correct without a tach, basically making an assumption that the idle speed screw (throttle lever stop) and low-speed carb setting are already set properly from the factory. The service manual has a few important steps that require a tach as you adjust the idle speed and mixture settings back and forth to make sure both are adjusted together properly. With the Hardline tach and service manual, I had the chainsaw tuned perfectly in half the time it takes to drive to the dealer and back.

I've purchased two of these. One to use on a generator, the other on a scooter. Both installations went easy. There really is only one wire to wrap around the spark plug wire and you are good to go. Can be adjusted for 2 and 4 stroke engines with different spark profiles. You also get a MAX RPM memory, and Engine Run Time counter. RPMs seem to update about every second. Device auto shuts off when the engine is turned off. You can access the Run Time and RPM memory while the engine is off. Instructions state that the Run Time counter is NOT re-settable, so once it starts ticking, it just keeps going. The battery in this device is NOT replaceable, and the vendor states it has about a 10 year life. So keep in mind that this is eventually a throw away device. This is probably done to weatherproof the unit, as the entire thing is sealed up tight. I would not expect any issues with this being exposed to water/rain.

I installed it on my Stihl chainsaw. I went to home depot and got some fastener to install it on the chainsaw handle. Now I could tell how long I use the saw. What was the maximum RPM. You need to reset the max speed for the session you need the max rpm. I could monitor the health of my machine. I hope the battery last longer but there's no way to tell how long it will. Neither do I know when the battery's birth day. It is very easy to install. Simply wrap the wire on spark plug's cable 4 times then insert it into this device.

I'm a huge fan of Hardline Hour/Tach Meters, Have installed some units previously, In order to read rpm properly must select correct spark firing setting with engine OFF after physical installation. if counting with any tiller outboard, it's a must have, excellent for traking run hours, maintenance intervals & rpm while boating, a great tool when going for prop maximizations. Like the leftover cut cable feature once pick up cable is properly routed from spark cable to tiller end. If plan rinsing outboard after salt water use, it's not 100% water or splash proof. Be aware that water could penetrate through toggle button sides inside unit and fog it. So if in need to wash tiller, cover it with a long plastic sheath sealed at end or cut a small 8-10 mm square portion of electric tape and tape it on top of toggle button to avoid water intrusion, both methods works very well. Stay away from cheapo hour/tachs, this is the one to go after, money well invested...

Seems to be accurate. Added to a 20hp, Mercury EFI, outboard. 4 stroke, twin cylinder, electronic ignition. Was wondering if it would work with the new electronic coil, but there was no issues. Just wrapped it around 1 plug wire several times, at the coil, and that did the trick. Used a tie wrap to attach it to the tiller. I didn't want to use the sticky tape that was included. I cut the wire to length, as needed. Super fast, simple installation. Will give it some time to see how it holds up. If no issues, I'll consider buying more.

Tried it out and it works like a champ. I'm using this tach for tuning multiple engines so I plan on not permanently attaching it to the machine. The wire doesn't want to stay in a loop around the spark plug cable for the inductive pickup so I used a clothes pin to hold the two ends of the coil together. I suppose a paper clip would work also. Instructions were almost impossible to read but I have a magnifier handy which helps. Whatever suits your fancy. Thanks Hardline for your hard work.