--- product_id: 318290599 title: "Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike" brand: "runleader" price: "€ 47.94" currency: EUR in_stock: true reviews_count: 13 category: "Runleader" url: https://www.desertcart.it/products/318290599-digital-tach-hour-meter-engine-temperature-gauge-alert-rpm-temp store_origin: IT region: Italy --- # Tracks up to 999.99 total & job hours RPM range 0-25,000 with alert system Temp sensor -20°C to 300°C with alerts Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike **Brand:** runleader **Price:** € 47.94 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead of the engine curve with Runleader’s all-in-one digital tach & temp gauge! ## Quick Answers - **What is this?** Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike by runleader - **How much does it cost?** € 47.94 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/318290599-digital-tach-hour-meter-engine-temperature-gauge-alert-rpm-temp) ## Best For - runleader enthusiasts ## Why This Product - Trusted runleader brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable & Reliable:** Water and shock resistant design with replaceable battery for long-lasting, hassle-free operation. - • **Night & Day Visibility:** Customizable green/red backlight modes guarantee clear readings anytime, anywhere. - • **Maintenance Made Simple:** Programmable hour meters and service alerts ensure you never miss critical upkeep windows. - • **Universal Compatibility:** One-wire connection fits lawn tractors, generators, marine engines, and more for versatile use. - • **Precision Engine Monitoring:** Real-time RPM & temperature readouts keep your engine performance optimized and safe. ## Overview The Runleader Digital Tach Hour Meter is a compact, versatile engine monitoring device designed for a wide range of gas engines including lawn tractors, generators, marine vessels, and more. It features precise tracking of total and job hours, real-time RPM monitoring up to 25,000 with alert capabilities, and temperature sensing from -20°C to 300°C. Its customizable backlight display ensures visibility in all conditions, while its durable, water and shock-resistant build guarantees reliable performance. Easy to install with a one-wire connection and programmable maintenance alerts, it empowers users to optimize engine performance and maintenance schedules effortlessly. ## Description Product description For more than 10 years, Runleader has focused on product development and manufacturing in the fields of hour meter, battery indicator, multi-function meter, controller,service for the garden machinery industry, outdoor power vehicle equipment, transportation vehicles, such as: generators, pumps,chainsaws,outboards,lawn mowers,compressors and others,provide well-known European and American customers with quality products and services. RL-HM035A-TS002 is a multifunctional meter which can track the engine working time, record the real-time RPM and the engine temperature. It have 2 colors of backlight: Green and Red, the green backlight will help you to use it at night or dim place, the red backlight will alarm you the maintenance arrival, Temp and RPM value exceed. This device have favorable water resistance,it can keep the normal working condition up to waterproof rate IP67. It attached the built-in replaceable battery CR2032 with long running lifetime. It display the temp,hours and RPM by visual seperate areas at LCD screen, which can help you to check the data conveniently. Runleader RL-HM035A TS002 LCD Engine Temperature Gauge, RPM & Hours Display, Maintenance Reminder,Replaceable Battery,Waterproof Design. 1. Engine Temperature Gauge 2. Digital Hours Tachometer Real-time RPM: Record the engine real-time RPM value when it run, help to calibrate the accuracy by 9 engine firing patterns. MAX RPM&RPM ALERT: Display the maximum RPM value since engine start to work, Alert the RPM running exceed based on the preset RPM alert value. Hours: Keep track of total and partial hours for engine running;Schedule the regular maintenance task and advise it's arrival time. RPM range: 0 to 25,000 RPM. TOT & JOB hours range: 99,999 hours Maintenance timer range: 0 to 200 hours. Real-time temperture: Help to measure the real-time engine temperature value by TS002 probe sensor wire. MAX temperature: It display the maximum temperature value during historic measurement process. Temperature alert: Remind the temperature exceed based on preset alert temperature value. Temperature units: You can switch the temperature unit from "℃" to "℉". Temperature measurement range: -20-+220℃/ -4°F-428°F. Green & Red backlights display. Replaceable built-in battery. Well-completed accessories. Runleader has established a complete laboratory for testing and improving the product's quality Buttons Testing The buttons can works well after 10,000 repeated taps with a 300g weight. High & Low Temperature Testing It can works well in temperature environments temperature: -40 °C - +70 °C Drop Testing Favorable anti-vibration performance can suffer strong vibrations when the equipments is working. Anti-vibration Testing It can keep the housing and LCD display window in good condition upon vibration amplitude 1.52mm after 6 hours testing period. Anti-interference Testing It keep good working condition upon static interference test. Yellowing Resistance Testing It can keep good working condition from simulative strong UV ray lightening. It also pass another considerate test for each functions sections and attached accessories. Review: Works as described - Small for what it is so placement to see it is difficult. Works as it should Review: 14mm spark plug tabs and wraps the spark plug wire for RPM reading - Mounted on a YW50S Zuma 2 stroke Smaller than expected which is about the width of a modern cell phone held upright, Simple setup, long enough wire to run the instrument on my handle bars, temps are reading properly and rpm’s look great, backlight is awesome for night riding and comes with a common cr2032 battery. Also came with 2 different angle type 14mm spark plug tabs, I did have to break a tiny fin on my cylinder head to fit the sensor tab and make a tiny pencil sized cut out to clear the wire on my engine shroud but is so minimal it looks naturally placed. ## Features - HOURS ---- Monitor the total run time(TOT) and single working hours(JOB) of gas engine, with ability to program previous hours(INT) for an replacement;Accomplish maintenance at recommend intervals to determine the due time(SVC);TOT & JOB hours range:0-999,99 hours;SVC timer range:5-1000 hours - RPM ----- Display the real-time RPM readout by vairous engine firing patterns setting to adjust engine idle speed; Alert channel for revolution exceed reminder;Viewable highest revolution since the engine started; RPM measurement range: 0-25000RPM, Alert range: 100-25000RPM - TEMP ---- Keep eyes on engine current and maximum temperature at all the times by probe senor(The induction probe cannot be bent to avoid breakage); Remind the temperature exceed for engine maintenance; Easy to switch between Celsius and Fahrenheit;Temp measurement & alert range: -20°C~+300°C(-4°F~+572°F) - BACKLIGHTS ---- Default green backlight will help to use it at night or dim place, you can set the backlight mode by always-on, OFF and automatical mode(OFF default, button to wake up) as request;Red backlight will remind the engine RPM or TEMP exceed - OTHERS ---- Easy to mount it on proper position by stick-on, screw-on and extra bracket(not include), one-wire connection with spark plug to pick up working signal (At least 5-8 circles tight winding; Total Length 68.8inches, workable if shorten or extend) to work right away;Favorable water and shock resistence; Battery capacity will be kept in good condition with insulation sheet during transport, it is repalceable;LCD shutdown also can extend the lifetime in vacant time ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B092CDSQ33 | | Best Sellers Rank | #9,515 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Tachometers | | Brand | Runleader | | Brand Name | Runleader | | Customer Reviews | 4.0 out of 5 stars 1,199 Reviews | | Item Dimensions | 1.46 inches | | Item Weight | 60 Grams | | Item dimensions L x W x H | 1.46 inches | | Manufacturer | Ningbo Jiangbei Run Leader Electronics Co., Ltd | | Material | Plastic | | Material Type | Plastic | | Model | RL-HM035A | | Part Number | RL-HM035A | | Thread Style | Spark Plug Wire Wrap (One-wire) | | Thread Type | Spark Plug Wire Wrap (One-wire) | | UPC | 723093900728 | ## Product Details - **Brand:** Runleader - **Item Weight:** 60 Grams - **Item dimensions L x W x H:** 1.46 inches - **Material:** Plastic - **Thread Type:** Spark Plug Wire Wrap (One-wire) ## Images ![Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike - Image 1](https://m.media-amazon.com/images/I/61DDCc33beL.jpg) ![Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike - Image 2](https://m.media-amazon.com/images/I/71wcEbvYGnL.jpg) ![Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike - Image 3](https://m.media-amazon.com/images/I/71XO4ILPvaL.jpg) ![Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike - Image 4](https://m.media-amazon.com/images/I/61U8xP3+u+L.jpg) ![Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike - Image 5](https://m.media-amazon.com/images/I/7114DrbQY1L.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: How do you connect it to read engine temperature?** A: Remove the spark plug. Place the copper washer over the threaded portion of the plug and screw the plug back into the cylinder head. Tighten the plug with the appropriate torque. **Q: Does this work with 2-cylinder engines, or just singles?** A: It works with: 2 stroke: 1 cylinder / 2cylinder / 3cylinder 4stroke:1 cylinder / 2cylinder / 3cylinder / 4cylinder / 5cylinder / 6cylinder / 8cylinder /12cylinder/16cylinder 6 stroke:2 cylinder Some 4 stroke 1 cylinder engine is 1P1R,the setting is the same way as the 2 stroke 1 cylinder engine. **Q: How long are the wires on the temperature sensor ring cables? Only the length of the tach wire is shown.** A: The length of probe sensor wire is 58.5cm(approx.23.03 inches) **Q: How do I know which model to get? The connections look different.** A: we think your model is HM035A-TS003, the temp sensor can measure the engine temperature especially easy to put it into engine radiator. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works as described *by M***N on April 28, 2026* Small for what it is so placement to see it is difficult. Works as it should ### ⭐⭐⭐⭐⭐ 14mm spark plug tabs and wraps the spark plug wire for RPM reading *by L***Y on May 23, 2026* Mounted on a YW50S Zuma 2 stroke Smaller than expected which is about the width of a modern cell phone held upright, Simple setup, long enough wire to run the instrument on my handle bars, temps are reading properly and rpm’s look great, backlight is awesome for night riding and comes with a common cr2032 battery. Also came with 2 different angle type 14mm spark plug tabs, I did have to break a tiny fin on my cylinder head to fit the sensor tab and make a tiny pencil sized cut out to clear the wire on my engine shroud but is so minimal it looks naturally placed. ### ⭐⭐⭐⭐ Good programmable multifunction engine meter for Toro Timecutter Zero Turn and others *by N***O on September 30, 2023* This review is for the Runleader RL-HM0354-M5 multifunction meter. I bought this particular style because it comes with a mounting base that fits to a round bar - perfect for attaching to one of the mower control arms. I installed this in my Toro Timecutter 50 in model 75759 with Kawasaki 23 HP engine. It is a huge improvement over the very limited and basic Toro factory hour meter, but will not fit in the factory panel location without messy modification. However, it was very easy to attach this to one of the control arms. It should be easy to mount on many different machines. This Runleader unit will measure engine runtime anytime the engine is running, whether or not you are sitting in the seat, because it is triggered by sensing pulses from one of the spark plugs. It can be programmed with starting runtime hours in case you are replacing an older hour meter and want to preserve the total cumulative engine run time from a previous installation for instance. It can be programmed with countdown service interval timers to remind you when to change the oil and filter. The Runleader meter has a replaceable, common CR2032 coin cell battery, which is a real plus but unfortunately, you have to unmount it to get to the underneath of the display to change the battery! I knocked off one star for inconvenience there. The meter comes with some double-sided tape if you just want to slap it on a flat surface but this makes battery replacement extremely messy so I don't recommend that method of attachment. By comparison, the Toro brand factory hour meter is not resettable, does not measure anything except runtime, does not have a replaceable battery, and only measures runtime when you're actually sitting in the seat. It will not measure runtime if you leave the engine idling and get out of the seat for example, because it plugs into a factory harness that senses the seat interlock to start the timing. INSTALLATION I have some annotated photos from my installation that should be very helpful to others. I had to drill a large hole in the plastic fairing adjacent to the right hand spark plug in order to put the temperature sensor ring terminal underneath the spark plug and route the temp sensor wire with connector to the outside of the fairing. The hole size is just large enough for the connector on the wire to pass through from the inside. The ring terminal itself is much larger and cannot be bent to allow the wire to come out parallel with the plug so don't try that. The rest of the installation was very straightforward. For the runtime and RPM sensor wire, I used five wraps around the right hand spark plug wire and secured them with the supplied tie wrap as shown in the photo. I routed the wires along the inside of the mower frame with one zip tie through an unused hole in the plastic body, and protected the wires using nylon spiral harness wrap for a very neat installation. There was some excess length in some of the wires so I folded them before wrapping. I zip tied the meter to the right hand inside control arm of the mower. I push the control arms out to park the mower to make readings and this works just fine. PROGRAMMING To save battery life, program the backlight to be off. After shutting down the engine, you also need to turn off the unit manually by pressing and holding both the m and s buttons simultaneously. RPM range should be set to 'r4' (0 - 6,000 RPM) for this Kawasaki engine, and the RPM pickup needs to be programmed to '1P1R' (1 pulse per rotation). This calibrated the RPM beautifully and exactly matched and external laser tachometer that I borrowed from my friend to verify the speed. As a matter of fact, once I installed this meter, I became aware that the factory throttle cable arm and linkage was not allowing for the full range of throttle control without some modification and adjustment. As it was delivered, it was only making about 3100 RPM on the meter. Once I got things adjusted and could make the full 3600 RPM that the Kawasaki engine is rated for, performance improved significantly, especially top mowing speed. I programmed the high temperature alarm to be 276° f, which seems to be above the highest operating temperature I encountered in the summer. Be aware that if you set this too low, the alarm will keep coming on and flashing the backlight wasting battery power even if you have backlight turned off. I set the RPM alarm speed to 3675 to alert me to any possible over revving while accounting for slight bumps when first hitting the throttle while the governor kicks in. I've used this meter for about 2 months on my new mower and I'm delighted with it so far. Hope you find the photos very useful. ## Frequently Bought Together - Runleader Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike - HIAORS 50 inch Throttle Cable for CT200U Mini Baja MB165 196cc 5.5hp MB200 200cc 6.5hp Pit Bike Heat Warrior MOTOVOX MBX10 MBX11 Parts - YAMAKATO 16pcs Carburetor Jet Kit Main Jets for Mikuni VM22 VM24 VM26 125cc 150cc 200cc 250cc for Mini Bike Dirt Bike Pit Bike ATV 88 90 95 98 100 105 110 115 120 125 130 135 140 145 150 155 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.it/products/318290599-digital-tach-hour-meter-engine-temperature-gauge-alert-rpm-temp](https://www.desertcart.it/products/318290599-digital-tach-hour-meter-engine-temperature-gauge-alert-rpm-temp) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-06-01*