--- product_id: 84271126 title: "Jayron JR-HM055AD(AC/DC 5V to 277V) Digital LCD Hour Meter Accumulate Data for Garden Lawn Mower ZTR Tractor Generator Golf cart Club Car Wash Boat ATV Motor Compressor and Pneumatic Equipment,Black" brand: "nine-rong" price: "AR$68585" currency: ARS in_stock: true reviews_count: 11 category: "N In E R On G" url: https://www.desertcart.com.ar/products/84271126-jayron-jr-hm055ad-ac-dc-5v-to-277v-digital-lcd store_origin: AR region: Argentina --- # IP68 waterproof & vibration proof 6-year battery life 0.1h accuracy hour tracking Jayron JR-HM055AD(AC/DC 5V to 277V) Digital LCD Hour Meter Accumulate Data for Garden Lawn Mower ZTR Tractor Generator Golf cart Club Car Wash Boat ATV Motor Compressor and Pneumatic Equipment,Black **Brand:** nine-rong **Price:** AR$68585 **Availability:** ✅ In Stock ## Summary > ⏳ Never miss a beat—track your machine’s life like a pro! ## Quick Answers - **What is this?** Jayron JR-HM055AD(AC/DC 5V to 277V) Digital LCD Hour Meter Accumulate Data for Garden Lawn Mower ZTR Tractor Generator Golf cart Club Car Wash Boat ATV Motor Compressor and Pneumatic Equipment,Black by nine-rong - **How much does it cost?** AR$68585 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/84271126-jayron-jr-hm055ad-ac-dc-5v-to-277v-digital-lcd) ## Best For - nine-rong enthusiasts ## Why This Product - Trusted nine-rong brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Data Safe & Sound:** Auto-saves runtime data even when powered off, ensuring zero loss of critical info. - • **Precision Timekeeper:** Track machine runtime with 0.1-hour accuracy for flawless maintenance scheduling. - • **Effortless Installation:** Polarity-free terminals and snap-in design make setup a breeze—get running in minutes. - • **Built to Brave the Elements:** Epoxy-sealed, IP68 waterproof, and vibration-resistant for rugged outdoor reliability. - • **Universal Voltage Compatibility:** Seamlessly supports AC/DC 5V to 277V across diverse equipment—no device left behind. ## Overview The Jayron JR-HM055AD is a robust digital LCD hour meter designed for professional-grade equipment monitoring. It accurately logs total running hours with 0.1-hour precision, supports a wide AC/DC voltage range (5V to 277V), and features automatic data retention backed by a 6-year battery life. Its rugged epoxy sealing and IP68 waterproof rating ensure durability in harsh environments, while polarity-free terminals simplify installation. Ideal for lawn mowers, generators, ATVs, and more, it empowers proactive maintenance and maximizes equipment lifespan. ## Description Jayron JR-HM055AD Digital LCD chronograph for voltage: AC/DC 5V to 277V, Accumulate TOT , it will be saved data automatically when equipment shut down,easy to install, snap-in design. Excellent waterproof design.Product Functions:1 Hour Meter (TOT) function---- Help you to track the total running time of the machine in real time▶ The total running time of the display engine will be displayed and remain visible.▶ The total running hours in range 0.0-9999.9H，0.1H accuracy；The total running hours in range 10000-99999H，1H accuracy.▶ The timing mode is increment counting, the initial value is 0, and the maximum value is 99999H; if it exceeds the max value, it will be cleared automatically.▶ When hour meter has detected the signal for 1s continuously,start timing and the hourglass flashes on screen.▶ TOT is can not reset.2 Other Functions▶ Built-in CR2050 battery, battery life up to 6 years, data storage for more than 25+ years.▶ Components：Operating instruction;2 insert spring;2 insert spring sheath.▶ LCD screen size 12.5mm × 24.5mm.▶ Product size:45*27.5*35.5mm.▶ Waterproof rate: IP68.3 Works on:▶ Suitable for outdoor power equipment, vehicles, boats, generators, agricultural equipment, construction machinery, etc.Such as: garden mower tractor riding mower blade blower high pressure cleaner Chain saw snow blower brush mower line trimmer wire cutting machine high pressure cleaner portable inverter generator motorcycle Dirtbike ATV UTVParamotor Harley double sports bicycle golf Car outboard Jetski Pontoon boat Mercury Raceboat Hovercraft, etc. Review: exc product - great product exc service Review: Good little device - Simple to fit and easy to wire up as it is not polarity sensitive. The only thing it could do with is a backlight....but for the money, it is excellent ## Features - HOUR METER----Tracking the number of hours of the machine; the total running time of the machine will be displayed and remain visible. The Max timing value is 999,99 hours; 0.1 hour accuracy; TOT cannot be reset. - SCOPE OF APPLICATION----Suitable for AC/DC power supply equipment: 6V 12V 24V 36V 48V 72V 110V 120V 230V. Wide voltage range: AC / DC 5-277 volts; AC / DC voltage compatible.Suitable for most types of zero-turn lawn mowers; also suitable for other AC/DC power supply equipment. - DATA STORAGE----When the external power supply is turned off, the data will be automatically stored, and the reading will be accumulated in the next cycle directly. - INSTALLATION----Two termainals regardless of positive and negative.Built-in CR2050 battery.Easy operation,if product is installed correctly,the hourglass flashes. - OTHER----Sealed with epoxy resin, it has excellent heat resistance and vibration resistance; Waterproof grade: IP68; 2-year warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07HMMGRBL | | Batteries | 1 Lithium Metal batteries required. (included) | | Batteries Required? | Yes | | Batteries included? | Yes | | Battery Cell Type | Lithium Metal | | Best Sellers Rank | 236,578 in Garden ( See Top 100 in Garden ) 97 in Lawn Mower Hour Tachometers | | Customer Reviews | 4.0 4.0 out of 5 stars (64) | | Date First Available | 24 Sept. 2018 | | Item Package Quantity | 1 | | Item Weight | 40 g | | Item model number | JR-HM055AD | | Manufacturer | Jayron | | Material | Epoxy | | Part number | JR-HM055AD | | Product Dimensions | 4.5 x 3.5 x 2.8 cm; 40 g | ## Product Details - **Brand:** NInE-ROnG - **Item dimensions L x W x H:** 45 x 35 x 28 millimetres - **Item weight:** 0.04 Kilograms - **Manufacturer:** Jayron - **Material:** Epoxy ## Images ![Jayron JR-HM055AD(AC/DC 5V to 277V) Digital LCD Hour Meter Accumulate Data for Garden Lawn Mower ZTR Tractor Generator Golf cart Club Car Wash Boat ATV Motor Compressor and Pneumatic Equipment,Black - Image 1](https://m.media-amazon.com/images/I/51uw920HDyL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ exc product *by B***L on 10 June 2024* great product exc service ### ⭐⭐⭐⭐ Good little device *by B***B on 4 February 2020* Simple to fit and easy to wire up as it is not polarity sensitive. The only thing it could do with is a backlight....but for the money, it is excellent ### ⭐⭐⭐⭐⭐ Good *by P***S on 9 May 2024* Good --- ## 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.com.ar/products/84271126-jayron-jr-hm055ad-ac-dc-5v-to-277v-digital-lcd](https://www.desertcart.com.ar/products/84271126-jayron-jr-hm055ad-ac-dc-5v-to-277v-digital-lcd) --- *Product available on Desertcart Argentina* *Store origin: AR* *Last updated: 2026-05-22*