Jayron Digital LCD Tachometer Inductive Tach Hour Meter Display Max RPM Waterproof for Most Gas Engine Marine ATV Generator Lawn Tractor Motorcycle (Orange)
Rated 4.1 out of 5 based on 130 customer ratings
130 ratingsSource: Amazon
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About this item
- HOUR METER—-The total hour reading display range is 0 to 99999 H, 0.1/1H accuracy. There is also a resettable partial timer
- TACHOMETER—- Measure the current RPM of the engine. When the engine turn on, the LCD displays the current RPM and the maximum RPM is 30000
- INSTALLATION—- Easy to install, no wiring required, or connection with the enclosed hardware, this tachometer records gasoline engine’s total running hours and RPM by getting the induction from spark plug cable when engine starts.
- RPM TYPE—- According to the gasoline engine with different power and speed range, there are 3 optional RPM types: 1P2R; 1P1R; 2P1R
- OTHER—-100% epoxy sealed shell, waterproof, shockproof, waterproof grade: IP68; contains detailed users instructions; patents, CE ROHS certification; has two years after-sales guarantee
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- Compare the listing with the part currently installed on your vehicle.
Customer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: orange|Verified Purchase
Instructions are hard to follow. I needed a RPM reader but all kids of numbers. Cannot figure it out.
John Burris –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: black|Verified Purchase
I bought this as a tool for maintaining small engines, it turns off when there is no signal and you can hold the square end up to the plug wire or spark plug boot and it wakes up and reads RPM very well, works great!
Mary Ziegler –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: orange|Verified Purchase
Used the tachometer 4 times so far on 2 stroke equipment. Appears to do what it is supposed to. I like that you don’t have to use the wire to get a reading. I hope it lasts longer than the cheaper black ones I’ve ordered from China. (This one is probably from China too) Lol
Rob H. –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: orange|Verified Purchase
Wish I spent the extra money on a Tiny Tach instead of wasting it on this. Less than 3 months old, used three times so far and not giving accurate reading.
Client d’ –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: red|Verified Purchase
fonctionne a merveil bravo
Customer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: orange|Verified Purchase
nicely made an worked as stated, used on my lawn mower an chain saw to set the correct rpms.
Dan Terninko –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: red|Verified Purchase
Literally just hold up to your spark plug wire for instant rpm read. I use this to tune my mowers, tractors and other small engine equipment. Really cool little useful gadget.
Naydene Gibson –
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External marketplace context: Color: red|Verified Purchase
exactly what was asked for
Buyer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: orange|Verified Purchase
Needed an RPM reference to tune a 2 stroke. Works great. Super easy. Recommend using the wire so you have 2 hands free to do the tuning.
Colin –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: orange|Verified Purchase
Trying to use this for tuning chainsaws. On the low end, it seems to be off by 800 to 1200 rpm as far as i can tell. On the high end, wide open throttle, it shows numbers in the 3000s and occasionally will go up to numbers in the 6000s, when the chainsaws rpms are actually around 12,000. Really was trying to make this work since the price was right, but it doesnt feel reliable and the risk of damaging expensive saws is not worth it.
Cheryl Williams –
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Didn’t do what I wanted I didn’t want to hookup wires to see rpm just wanted to hold and instruction would be nice.
curtis snodgrass –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: orange|Verified Purchase
So first of all the product does indeed work as described but the instructions are not all that great. If you continue to hit the set button there are 3 main settings. On the package there are instructions but they are vague. I have discovered that when you repeatedly hit the set button, you are left with 3 options and what they do; P=Pulse/R=Revolutions, (1P1R/1P2R/2P1R). Which is used for the difference between [2 cycle 1 cylinder~1P1R] , small engines with 2 cylinders that share one coil which sparks twice per revolution. “example v-twin/flat twin (opposing cylinder twin) engines”/[4 stroke, 2 cylinder 1 coil engines~2P1R] , and lastly any 4 stroke engine that has one coil per cylinder and only sparks once per 2 revolutions~1P2R]. So essentialy and simplified in MOST cases it would look like this.2 stroke, 1 coil = 1P1R4 stroke, 1cyl, 1 coil/magneto = 1P1R4 stroke w/stater, points, 12v coil = 1P2R4 stroke, multiple cyls, 1coil per cyl=1P2R4 stroke, 2 cyl 1 coil = 2P1R2 stroke, 2 cyl 1 coil = 2P1RSo to achieve the correct actual rpm, you must make sure it’s seeing how many actual pulses are being supplied by the coil you are reading the rpms from. I hope this helps with the main settings and getting an accurate reading for the engine you’re using this on. Once it is set one time for the engine you are using it on, it it’s only used on that engine and or engines or the like, it will save its last setting. Which is nice for tuning a chainsaw, bike, car, go cart, ect… Other than the poor instructions, I feel it’s very close to accurate based off using a scan tool and reading actual data on a car engine and comparing it to this device it was withing 5 rpms! I feel that’s pretty impressive for how cheap this is.
Customer –
Imported from Amazon. This is not a review of a purchase made on this website.
External marketplace context: Color: red|Verified Purchase
The digital readings are so far out the product is unusable.