--- product_id: 275281449 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: "₹ 4389" currency: INR in_stock: true reviews_count: 5 category: "Jayron" url: https://www.desertcart.in/products/275281449-jayron-jr-hm032a-self-powered-digital-tach-inductive-maintenance-waterproof store_origin: IN region: India --- # IP65 waterproof rating 0.1H hour meter accuracy 8 programmable firing patterns 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:** ₹ 4389 **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?** ₹ 4389 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/products/275281449-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 - • **Rugged & Reliable:** Waterproof IP65 design with replaceable battery and 2-year warranty for long-term peace of mind. - • **Versatile Job Timer:** Resettable JOB timer tracks specific tasks for optimized workflow management. - • **Dual Backlight Modes:** Red warning and green ambient backlight ensure visibility anytime, anywhere. - • **Smart Maintenance Alerts:** Customizable service timers flash 'SVC' to prevent costly downtime. - • **Precision Engine Tracking:** Real-time RPM display up to 20,000 with 10 RPM accuracy keeps you in control. ## Overview The Jayron JR-HM032A is a self-powered digital tachometer and hour meter designed for lawn mowers, tractors, generators, and pneumatic equipment. Featuring 8 programmable firing patterns, real-time RPM display up to 20,000 RPM, and a highly accurate hour meter with 0.1-hour precision, it also offers programmable maintenance reminders and a resettable job timer. Its dual-color backlight enhances visibility, while the IP65 waterproof rating and replaceable battery ensure durability and convenience. Certified with CE and RoHS, this compact device is built for professionals who demand reliable engine monitoring and maintenance tracking. ## Description Jayron JR-HM032A Self Powered Engine Digital Maintenance Reminder Tachometer contains tachometer, hour meter, service timers, JOB timer , Programmable max RPM reminder and backlit mode selection. Replaceable battery ,Shutdown function and waterproof designProduct Functions:1 Hour Meter (TOT) Function▶When the engine is off, the display shows the total running time of the engine and remains visible.▶The total hours max value is 99999H;Total Hours reading displays from 0 to 9999.9H,0.1H accuracy;Total Hours reading displays from 10000 to 99999H,1H accuracy.▶When the total exceeds the Max value 99999H,the value is cleared automatically.▶TOT hours are non-resettable.But automatic clearing when exceeding the maximum value.2 Service timers (SVC) Function---- Countdown tracking time, Reminding maintenance,Such as Air filter Replacement▶Programmable maintenance interval time from 0-200H.▶When the maintenance time arrives,"SVC" icon will flash to remind you.3 JOB timer (JOB) Function---- Used to measure the time of a specific job, such as changing the oil▶By operating the button display, the JOB running time of the engine can be displayed and kept visible.▶JOB timer reading displays from 0 to 99,999 Hours.▶JOB timer can be reset.4 Tachometer Function▶When the equipment is working, the tachometer will record the RPM in real time currently▶Has 8 different Programmable firing patterns▶RPM range is 0-20,000 RPM,and RPM accuracy is 10 RPM;Max RPM can be reset▶RPM has two selectable refresh rates: 0.5/1s▶Programmable Alert RPM, red backlit display and warning icon flash to remind the engine speed is out of range5 Others▶Built-in CR2032 210mAh.Battery replacement▶Backlight choice:L-Aut(adjusted automatically),L-ON,L-OFF▶LCD Screen size:16.8×40.8mm▶Patent,CE ROHS certification Review: Excellent little speedometer - Excellent little speedometer Review: quality made I ordered several - quality made I ordered several ## 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 | | Brand | Jayron | | Brand Name | Jayron | | Customer Reviews | 4.1 out of 5 stars 60 Reviews | | Item Dimensions | 18.8 x 10.7 x 2.5 centimeters | | Item Weight | 2.96 Ounces | | Item dimensions L x W x H | 18.8 x 10.7 x 2.5 centimeters | | Item weight | 2.96 Ounces | | Manufacturer | Jayron | | Material | Plastic | | 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) ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent little speedometer *by J***G on 23 September 2024* Excellent little speedometer ### ⭐⭐⭐⭐⭐ quality made I ordered several *by B***N on 1 September 2024* quality made I ordered several ### ⭐ Don’t bother *by R***B on 15 July 2024* It’s glitchy and won’t read the the rpm with any accuracy, the function button doesn’t work. This is a waste of money. ## 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.in/products/275281449-jayron-jr-hm032a-self-powered-digital-tach-inductive-maintenance-waterproof](https://www.desertcart.in/products/275281449-jayron-jr-hm032a-self-powered-digital-tach-inductive-maintenance-waterproof) --- *Product available on Desertcart India* *Store origin: IN* *Last updated: 2026-07-10*