--- product_id: 111069479 title: "Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1)" brand: "jayron" price: "€ 49.48" currency: EUR in_stock: true category: "Jayron" url: https://www.desertcart.at/products/111069479-jayron-jr-hm032a-self-powered-digital-tach-inductive-maintenance-waterproof store_origin: AT region: Austria --- # IP65 waterproof rating 8 programmable firing patterns Maintenance reminder with countdown Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) **Brand:** jayron **Price:** € 49.48 **Availability:** ✅ In Stock ## Summary > ⚡ Stay ahead of the grind with precision and power at your fingertips! ## Quick Answers - **What is this?** Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) by jayron - **How much does it cost?** € 49.48 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/111069479-jayron-jr-hm032a-self-powered-digital-tach-inductive-maintenance-waterproof) ## Best For - jayron enthusiasts ## Why This Product - Trusted jayron brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision RPM Tracking:** Real-time RPM display with resettable max and overspeed alerts keeps your engine performance sharp. - • **Versatile Compatibility:** Designed for lawn mowers, tractors, generators, and pneumatic tools—one device, endless applications. - • **Smart Maintenance Alerts:** Customizable countdown timer flashes 'SVC' to ensure you never miss critical upkeep. - • **Dual-Color Backlit Display:** Red warning and green normal modes optimize visibility day or night, reducing downtime. - • **Battery Replaceable & Data Secure:** User-replaceable battery with data retention after shutdown means no lost hours or settings. ## Overview The Jayron JR-HM032A is a self-powered digital tachometer and hour meter featuring 8 programmable firing patterns, real-time RPM display, and a resettable max RPM function. It includes a programmable maintenance reminder with a countdown and flashing service icon, dual-color backlit LCD for clear visibility, and an IP65 waterproof rating. Battery is replaceable with data retention after shutdown, making it ideal for lawn mowers, tractors, generators, and pneumatic equipment. Backed by a 2-year warranty, it ensures reliable engine monitoring and maintenance tracking. ## Description Buy Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1): Tachometers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - MULTI-FUNCTION TACHOMETER-----8 Programmable firing patterns; RPM real time dispalay;Resettable Max RPM; Overspeed warning with settable value;Settable Two gears RPM refresh rate. - HOUR METER----Track the number of hours the engine has worked. When the engine is turned off, the total running time of the engine will be displayed and remain visible. TOT hours cannot be reset,JOB timer for measuring specific working time; resettable. - MAINTENANCE REMINDER----Programmable maintenance interval in countdown mode,When the maintenance interval time is reached 0,the "SVC" icon will flash. - BACKLIGHT----This product has two colors of backlight: red and green. The LCD screen displays red backlight when warning ; the green backlight can be set to be always on,turn off or automatically adjusted. - OTHER----Battery can be replaced; User shutdown，data remains after shutdown; waterproof rating: IP65; 2 year warranty. Returning to the home screen if there is no operation on other screen for more than 10s automatically. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07LFGHJ6C | | Best Sellers Rank | #2,023,253 in Automotive ( See Top 100 in Automotive ) #817 in Automotive Tachometers | | Brand Name | Jayron | | Customer Reviews | 4.1 4.1 out of 5 stars (62) | | Item Dimensions | 7.4 x 4.2 x 1 inches | | Item Weight | 2.96 Ounces | | Manufacturer | Jayron | | Material Type | Plastic | | Part Number | JR-HM032A | ## Product Details - **Brand:** Jayron - **Item Weight:** 2.96 Ounces - **Item dimensions L x W x H:** 7.4 x 4.2 x 1 inches - **Manufacturer:** Jayron - **Material:** Plastic ## Images ![Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) - Image 1](https://m.media-amazon.com/images/I/41tJRxU7JkL.jpg) ![Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) - Image 2](https://m.media-amazon.com/images/I/3120886-IXL.jpg) ![Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) - Image 3](https://m.media-amazon.com/images/I/41Q9milt0xL.jpg) ![Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) - Image 4](https://m.media-amazon.com/images/I/41NhsTOCaDL.jpg) ![Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) - Image 5](https://m.media-amazon.com/images/I/410scFHTR-L.jpg) ## Available Options This product comes in different **Item Package Quantity** options. ## Questions & Answers **Q: How does it work? Does it utilize a laser that you must point to a moving target?** A: Huh? Wellll no. The pickup wire you wrap around the spark plug cable inductively picks up the firing of the spark plug and measures the frequency. **Q: Will it work on on Mercury 4 strike outboard?** A: I believe you mean “4 stroke”, and yes, it should work great. **Q: How long is the pick up wire** A: A little over 40 inches. **Q: Will this work on 2 cylinder 4 cycle Lawn Mower Engines?** A: As long as there is a spark plug, I don't see reason why not. You would need to power it up with a CR 2032 battery to lit up the screen. ## Frequently Bought Together - Jayron JR-HM032A Self Powered Digital Tach/Inductive/Maintenance/Waterproof/Backlit/Shutdown Hour Meter,Battery Replaceable,for Lawn Mower Tractor Generators and Pneumatic Equipment (1) - Upgraded Engine 12mm Drain Oil Changing Hose, Oil Drain Aid Tool, M12x1.5 mm, 18" Length - Nine-Rong Self-Powered Tach Hour Meter Digital LCD Inductive Tachometer Timing RPM Measuring Waterproof Design,for Gas Engine Lawn Mower Motorcycle Snowmobile Generator(2 Stroke)(Blue) --- ## 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.at/products/111069479-jayron-jr-hm032a-self-powered-digital-tach-inductive-maintenance-waterproof](https://www.desertcart.at/products/111069479-jayron-jr-hm032a-self-powered-digital-tach-inductive-maintenance-waterproof) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-07-16*