The operation of the Hour meter is connected by5 ft. insulated wire. You will wrap the wire around the spark plug for around 5 times. The meter is activated by the spark of the engine. Product Feature: Backlight Display RPM while engine is running and Hours while engine is off. Internal CR2450 Battery, so no power needed. This Digital Photo Laser Tachometer users the red visible light beam from a LED to measure the rotational speed. This laser measures from 2.5 to 99, 999 RPM. It's ultimately a great tool to measure the RPM of machine parts and motors. It can also be used to measure the speed of a milling machine as well accurately. Best Budget: Runleader Digital Hour Meter Tachometer. Contains tachometer, hour meter, and service timers, 0.1 hours accuracy, Programmable reminder, Easy to install, Waterproof rating: IP65. Best Commercial: Briggs & Stratton 19200 Tachometer. 800-25, 000 RPM range, Genuine OEM replacement part. DIGITAL TACHOMETER OPERATION MANUAL Ⅰ FEATURES 1. It is used the microcomputer (CPU) technique and junction laser technique for one instrument combine PHOTO TACH. (RPM) &CONTACT TACH (RPM, m/min). 2. Wide measuring range and high resolution. 3. Yellow green backlight makes sure that tachometer can work normally in any light circumstance. 4. For more than ten years, Runleader specializes in the development and manufacturing of hour meter, tachometer, battery gauge, thermometer, motor controller and so on. We provide cost-effective products and services for well-known European and American customers in the garden machinery industry, outdoor power vehicle equipment, transportation Jayron LCD Digital Inductive Pulse Speed Tachometer/Tach Hour Meter Waterproof for Small Engines Lawnmower Snowblower Chainsaws Tractor Motorcycle ATV including fit, age ratings, and language of product, labeling or instructions. Product information . Technical Details. Manufacturer ‎SEARON : Brand ‎Searon : Package Dimensions ‎7 x 5. The list of Best Automotive Replacement Hour Meter Gauges is right here for your consideration. We helped you research and test thousands of products using our innovative searching technology. With the support of 5,181 customer's reviews, we hope that this article can give you the most realistic view on these products. The list below contains some main brands as kosiwun, Magicalmai, AUTOUTLET Runleader Digital Hour Meter Tachometer, Maintenance Reminder, Battery Replaceable, User shutdown, Use for ZTR Lawn Mower Tractor Generator Marine Outboard ATV Motor Snowmobile and Gas Powered The manual states non replaceable battery! Read more. One person found this helpful. Report abuse. Ron G. 4.0 out of 5 stars SEARON Digital Chainsaw Searon Digital Hour Tachometer RPM Counter for Snowmobile Skis Motor Bike Go Kart Lawn Mower : Amazon.com.au: Automotive Runleader backlight Hour Meter Tachometer, Maintenance Reminder, Battery Replaceable, User shutdown,Use for Lawn Mower Tractor Generator Marine Outboard ATV Motor Snowmobile and Gas Powered Equipment Make sure you read through the short manual to understand all of the different data you can scroll through (e.g. refresh rate (1s or 0.5s Searon Digital Chainsaw Tachometer : check price: Run leader Digital Mini Tach Hour Meter The Runleader Digital Mini Tach Hour Meter is an easy to use, digital tachometer for chainsaw motors. It includes a backlight feature, and operating instructions are included with purchase