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Docooler Digital Hour Meter Gauge LCD Inductive Hour Meter

Docooler Digital Hour Meter Gauge LCD Inductive Hour Meter

for Gasoline Engine Racing Motorcycle ATV Mower Marine ATV Motorcycle Dirt Ski Waterproof 0.1/99999Hrs

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Suitable for all gasoline engines.
Large LCD display for easy reading.
Inductive design: You just need to wrap the wire around the spark plugs.
Powered by built-in batteries (service life: about 3 years).
Simple installation and waterproof.
Used to record running time of engines.

Color: Green
Material: ABS
Reading: 99999Hrs
Accuracy: 0.1HRS
Waterproof grade: IP68
Power: 1 * CR2450 battery
Battery life: 3 years
Wire length: 110cm / 43in
Hour meter size: 5.4 * 3.7 * 1.5cm / 2.1 * 1.5 * 0.6in
Product weight: 36g / 1.3oz
Package size: 17.5 * 10 * 1.7cm / 6.9 * 3.9 * 0.7in
Package weight: 65g / 2.2oz

Package including:
1 * Hour Meter
1 * Wire
2 * Screw

Customer Questions & Answers

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5 votes

I am replacing an existing meter on a Boat with 200 hours on it. Can I run up the time on this meter somehow to match before I install it?

  • No sorry its not adjustable.

    By D. Holden on June 8, 2017

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0 votes

Can I put i a dirt bike?

  • YES! any gas powered motor with a plug wire.

    By Kevin M on May 29, 2018

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0 votes

Where on a yamaha ef2000isv2 should i mount this?

  • I would install it on the side where you start the unit and the side that has all the hook ups

    By Joe Wilhem on March 6, 2018

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0 votes

Can anybody tell me how to install this thing? Instructions obliterated by bar code sticker, destroyed trying to remove sticker!

  • All previous answers are correct. Also, you can Goggle "How to install a inductive hour meter". The results are numerous for all types of applications.

    By J. FORD on January 19, 2018

See more answers (3)
0 votes

can you attach to an engine with 2 spark plugs like a Kawasaki FS600V

  • Yes, you just attach the wire to one of your coils. When the coils are firing, it will continue adding time to the hour meter.

    By Jacob L on December 28, 2017

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0 votes

If this product is compatible with yamaha inverter 2000?

  • Yes,it will work.

    By Ronald Agrusa on November 2, 2017

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0 votes

Will it work on a 2013 Apollo 250 rx just wondering?

  • If it has a spark plug wire it will work.

    By David Fields on October 6, 2017

0 votes

works with 12v and 24v

  • Yes

    By carbaughbill on August 28, 2017

See more answers (2)
0 votes

works with 12v and 24v?

  • yes just follow the directions for wrapping the "Induction wire" around any spark plug wire. once the motor is running it will create enough induction current to start the timer running. I actually put a wrap of high heat electrical tape around it to hold it in place. These little timer meters work great

    By Stephen Welch on August 28, 2017

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0 votes

Does this hold data when you have to replace the battery?

  • Replacing the battery looks to be a doubtful proposition. I believe the unit is disposable

    By Sean M on July 15, 2017

See more answers (3)


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Customer Reviews

Average Rating:


based on 282 Customer Reviews

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  • By Ryan Lester

    September 21, 2017

    Bought this for a Predator 212. It screwed right into the airbox without a drill. and I coiled it around the spark plug 7 times so it would register. My wire was roughly 4 feet long. It works as it should. There is a battery on these things and only time will tell how long it lasts. The thing is sealed so either you will have to break it open to swap the battery or buy a new one. But if it were to not be sealed then it wouldnt be waterproof so nobody can really find one thats waterproof and not sealed. But overall I do recommend this product

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  • By Online Shopper

    August 20, 2017

    Purchased for my Honda eu2000i generator (that does not come with an hour meter). Five wraps around the spark plug wire starting at the boot and easy to fish the wire thru to the meter mounted (via provided screws) to the top of the case near the handle. Cut away the excess wire that was not needed and it starting working when the generator was started. Measures tenths (one 10th = 6 minutes) and whole hours. This is needed to track when to change the oil. Only likely issue will be the non-replaceable battery.......when it runs out, time to buy another one. Unsure how long battery will last.

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  • By Benjamin B.

    August 16, 2017

    It works. Instructions didn't mention where to put the other end of the wire, but it's pretty obvious I guess (in the slot of the meter's case). Meter display remains on at all times, the little hour-glass blinks when the motor is operating (if you wired it correctly and it's not broken). It remains to be seen how long it'll last being on all the time like it is, but as long as I write down the time every couple weeks or so I should be fine even if it dies. For a few bucks, it's not bad. For installing the wire, I zip-tied one end parallel to the plug wire, made a 90-degree bend and wrapped it tight exactly 5 times (ending on the same side of the plug wire that I started on), made another 90-degree bend to get parallel again, then zip-tie tight so the coil doesn't get loose. Would have also put heat-shrink on at this point, but didn't have any big enough to fit over the boot that could also shrink to fit the wire. After installing the coil, I simply routed the wire around the motor shroud, installed the meter on the wire where I wanted it mounted, then stuck it in place with some heavy-duty scotch 3m fasteners.

    Is this helpful? (0) (0)

  • By Joseph

    August 4, 2017

    Bought this to track the hours on my Crraftsman R1000 lawn tractor. Works great. I used double sided 3M outdoor tape to attach it on a recessed area near the oil cap. Just a few minor things to be aware of; I needed to remove many parts from around the engine to get at the spark plug wire. Not a fault of the meter. Just the nature of the design on this particular mower. When I finally got to the plug wire, I wrapped the sensor wire 5 times around the spark plug wire approximately 3/4" from the boot. I tie wrapped everything securely and routed the sensor wire up to an opening near where I planned on mounting the meter. I ended up with about 6" of extra wire length, so I snipped that off to keep everything neat. The instructions are not clear on how the wire inserts into the meter. I ran the wire the full length of the meter and forced it all the way into the base pf the slot. Also be aware that although the instructions refer to double sided tape, there is none provided. They do give you two small self tapping screws which you could use if you wanted to drill a couple of holes. The meter is very light in weight, therefore I used my own double sided tape to securely attach the meter, without using the screws. One other minor thing, again not a fault of the meter, is the red color. From the picture, I thought it would match the red panels on my mower. This isn't the case. If I knew there would be such a noticeable difference in color, I would have ordered black. But that's just me being OCD! All in all, the meter does the job, and I feel it is well worth the money.

    Is this helpful? (0) (0)

  • By Marjorie W. Dunaway

    October 3, 2016

    by Marjorie's hubby: I bought 2 of these to put on my snow blower and generator to track usage. Finally got round to installing one on the snow blower. The concept is simple but my snow blower engine is encased in several shrouds and it was tough to access the spark plug cable. Once I got there and managed to get the 5 wraps on, things were simple. BUT for a few moments I was uncertain how to install the wire on the unit - it is simple, just tuck the wire in the slot along the base of the unit. A little more instructions on the card would help. I held back a star as I've only had it installed for 2 days - but I like it a lot - hope it is durable. I was surprised that it recorded I'd run the machine for 2 hrs already. Now I hope to be more prompt and diligent in oil changes. I expect it will pay off in better maintenance and longer life of the engine. Now to install on the generator which also has a deeply buried spark plug..

    Is this helpful? (0) (0)

  • By Mark Nakamura

    August 22, 2016

    Hooked this up to my new Yamaha EF1000 generator and it works great. Easy to install (just wrap one end of the included wire around the spark plug wire close to the plug and stick the other end into the slot on the meter. It comes with two screws to attach it but I used double sided tape and placed it on top of the generator spark plug access hatch. Good price (half that of the Yamaha branded version) and seems to be working just fine. It has an internal non-replaceable battery and I am not sure how long it will last, but for the price if I get 2 or 3 years use out of it I will be happy.

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  • By Mr.Plow9

    August 18, 2016

    It works. Wish you could change the battery when it goes dead. I installed this on my generator. It reads in tenths. So .5 is 30 minutes, 1.0 is 60 minutes, 1.5 is 90 minutes and so on. Hook up was easy. Just wrapped the wire around the end of the spark plug wire, as close to the spark plug as I could, 5 times. Instructions are vague. The wire needs to be inserted the full length of the slit in the back of the meter. Does not explain this in the bad directions. If I could change the battery, this would be 5 stars. Overall I'd buy this again and recommend it to others.

    Is this helpful? (0) (0)

  • By S.Allison

    December 1, 2017

    Tracking maintenance on my generator is easy with this hour meter. Took less than 5 minutes to install. Like other reviewers, I wish the battery was replaceable - I'm deducting 1 star for that.

    Is this helpful? (0) (0)

  • By Marco D

    September 2, 2017

    I gave this to a friend as a gift for his pit bike. It was easy to install and works great. The order was placed for a blue unit, but a black one was received. We decided to install it anyways, but it would have been nice to receive the correct colored item (which was priced higher than the standard black one by a couple dollars) since I wanted it to match his bike color.

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  • By Joe Wilhem

    August 13, 2016

    Easy to install easy to read

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  • By n***y

    January 16, 2016

    Would use again without hesitation

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  • By c***t

    December 17, 2015

    Alles bestens gerne wieder

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  • By b***n

    September 6, 2015


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  • By t***r

    April 16, 2015

    Alles gut gelaufen und auch mega schnell.

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  • By s***s

    March 17, 2015

    excellent, no problem, quick postage, thanks+++++++++++++++++++

    Is this helpful? (0) (0)

  • By k***0

    March 11, 2015

    Item is as described, looks great!

    Is this helpful? (0) (0)

  • By o***a

    February 4, 2015

    Thank you, item received !!

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  • By d***s

    February 3, 2015


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  • By r***1

    January 24, 2015


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  • By f***8

    January 7, 2015

    Great item easy install

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