---
product_id: 318290599
title: "Runleader 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: "€ 53.17"
currency: EUR
in_stock: true
reviews_count: 6
url: https://www.desertcart.fi/products/318290599-runleader-digital-tach-hour-meter-engine-temperature-gauge-alert-rpm
store_origin: FI
region: Finland
---

# Tracks up to 999.99 total & job hours Real-time RPM up to 25,000 with alerts Engine temp range -20°C to 300°C with warnings Runleader 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:** € 53.17
**Availability:** ✅ In Stock

## Summary

> ⏲️ Stay ahead of engine wear — because downtime is so last season!

## Quick Answers

- **What is this?** Runleader 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?** € 53.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/318290599-runleader-digital-tach-hour-meter-engine-temperature-gauge-alert-rpm)

## 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 with a replaceable battery and 2-year technical support for peace of mind.
- • **Customizable Alerts:** Never miss a maintenance window or engine warning with programmable RPM and temperature alerts.
- • **Night-Ready Backlight:** Green and red backlights ensure clear visibility and instant alerts even in low-light conditions.
- • **Precision Engine Monitoring:** Keep your engine’s health in check with accurate hour, RPM, and temperature tracking.
- • **Universal One-Wire Installation:** Simple spark plug wire wrap design fits lawn tractors, generators, marine engines, and more.

## Overview

The Runleader Digital Tach Hour Meter is a compact, versatile engine monitoring device designed for small engines like lawn tractors, generators, and marine vehicles. It tracks total and job hours, real-time RPM up to 25,000, and engine temperature from -20°C to 300°C, with programmable alerts to optimize maintenance schedules. Featuring a backlit LCD for day and night use, easy one-wire spark plug installation, and robust water and shock resistance, it ensures reliable performance and longevity backed by 2 years of technical support.

## Description

Digital Tach Hour Meter,Engine Temperature Gauge,Alert RPM & Temp,Backlights Display for Lawn Tractor Compressor Generator Snowmobile Marine Jet Ski Pit Bike

## 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;Reliable technical support and after-sales service(2 years).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Runleader |
| Material | Plastic |
| Item dimensions L x W x H | 1.46 inches |
| Item Weight | 60 Grams |
| Thread Type | Spark Plug Wire Wrap (One-wire) |
| UPC | 723093900728 |
| Manufacturer | Ningbo Jiangbei Run Leader Electronics Co., Ltd |
| Item Weight | 2.12 ounces |
| Item model number | RL-HM035A |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Manufacturer Part Number | RL-HM035A |

## Product Details

- **Brand:** Runleader
- **Material:** Plastic
- **Item dimensions L x W x H:** 1.46 inches
- **Item Weight:** 60 Grams
- **Thread Type:** Spark Plug Wire Wrap (One-wire)

## Images

![Runleader 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/71YbaSFZzML.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

### ⭐⭐⭐⭐⭐ Perfect
*by E***I on August 6, 2025*

Got it for my phatmoto motirized bicycle with a 80cc engine. Its works perfectly. Rpms and temp read very accurately. Not sure why one of the reviews say it doesnt have a tachometer when that is the main function. One small issue is it would turn off on its own so i just have to manually shut it off which is easy.just press both buttons simultaneously for 2 seconds.

### ⭐⭐⭐⭐⭐ Great for info
*by J***E on August 5, 2025*

Working as intended. I question the accuracy of the hour gauge on the unit as it has surpassed the hr gauge on my machine. The temp gauge seems to work good. I haven’t tested it for accuracy but knowing ballpark temps is great.

### ⭐ Its cheap
*by C***Y on September 13, 2025*

There are plenty of issues with this sensor. It was enticing because it was less expensive than a trailtech one and also had the tachometer feature. I disliked the sparkplug head temp sensor since it was not bent 90degrees. I had to bend it myself because it would not fit with the aircool fins on my bike. The display just went out on me where it was missing specific lines so the letters and numbers were very hard to read. It refused to auto off so it wasted battery unless you manually turned it off. I tapped on the display gently to try and get the letters/numbers back and it just immediately cracked, very fragile.I will not buy again and will now pay even more to get a trailtech

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-31*