{"product_id":"runleader-digital-maintenance-hour-meter-rl-hm038ag-h-ac-dc-5v-277v-ip68-epoxy-potted","title":"Runleader Digital Maintenance Hour Meter RL-HM038AG-H — AC\/DC 5V–277V, IP68 Epoxy-Potted","description":"\u003cp\u003e\u003cstrong\u003eThe Runleader RL-HM038AG-H is a tough, fully sealed digital hour meter that records machine run time across AC or DC 5V–277V systems and shows accumulated hours even when power is off.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact maintenance gauge helps you track total operating hours, set regular oil-change reminders, and preserve runtime records in challenging environments. Encapsulated in epoxy resin to IP68 standards and backed by EEPROM storage plus a CR2050 backup battery, it’s built for lawn mowers, generators, and other outdoor equipment that need reliable service tracking.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the RL-HM038AG-H record hours and reminders?\u003c\/h3\u003e\n\u003cp\u003eThe meter counts only when the machine is running, using either supply voltage or a spark-plug pulse as its signal source. It displays the cumulative hours on an LCD that remains visible when the equipment is powered down, and can be set to prompt maintenance at set intervals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecords total run time from 0 to 99,999 hours\u003c\/li\u003e\n  \u003cli\u003eOil-change reminder configurable every 50 hours\u003c\/li\u003e\n  \u003cli\u003eOperates from machine voltage or ignition pulse\u003c\/li\u003e\n  \u003cli\u003eDisplay stays visible when unit is off\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs it durable enough for outdoor and wet conditions?\u003c\/h3\u003e\n\u003cp\u003eYes — the RL-HM038AG-H is potted in epoxy resin to protect internal electronics from moisture and impact. It meets IP68-level water resistance and can withstand immersion up to 10 meters, making it suitable for wet, dusty, and vibration-prone environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e100% epoxy potting for moisture protection\u003c\/li\u003e\n  \u003cli\u003eIP68-rated: designed to run submerged up to 10 meters\u003c\/li\u003e\n  \u003cli\u003eResistant to dust and vibration typical of outdoor equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat machines and voltages is this hour meter compatible with?\u003c\/h3\u003e\n\u003cp\u003eThe RL-HM038AG-H accepts a very wide voltage range, so it fits both low-voltage DC systems and common AC supplies. It’s commonly used on residential mowers, commercial turf equipment, and portable generators where simple, reliable hours tracking is required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWide input range: AC\/DC 5V to 277V\u003c\/li\u003e\n  \u003cli\u003eWorks with lawn mower models and typical portable generators\u003c\/li\u003e\n  \u003cli\u003eCan start counting via seat\/pressure switch or ignition signal\u003c\/li\u003e\n  \u003cli\u003eCommonly compatible models include lawn tractors and GP\/WH series generators\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the RL-HM038AG-H installed and maintained?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: cut the panel opening, snap the unit into place, and connect to the machine’s power or ignition signal. Internal EEPROM preserves runtime history and a CR2050 backup battery keeps data and display memory when external power is interrupted.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePanel cut-out required: 37.5mm x 24.5mm (1.48\" x 0.96\")\u003c\/li\u003e\n  \u003cli\u003eSimple drill-in mount and snap-in retention\u003c\/li\u003e\n  \u003cli\u003eBuilt-in CR2050 360mAh battery for display\/data retention\u003c\/li\u003e\n  \u003cli\u003eEEPROM stores accumulated hours securely\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Runleader RL-HM038AG-H fits owners and technicians who need a small, durable, low-maintenance hour counter for outdoor engines and equipment. It’s ideal for homeowners tracking mower service intervals, landscapers managing fleet maintenance, and anyone running portable generators or utility machines that require waterproof, long-term hour logging without complex wiring or regular battery replacement.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What voltage range does the hour meter support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It accepts AC\/DC inputs from 5V up to 277V, fitting most small engines and generators.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it keep hour data if power is lost?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—EEPROM storage plus a built-in CR2050 battery retains display and runtime records.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Runleader","offers":[{"title":"Default Title","offer_id":67592934457529,"sku":"B07RHMGNHT","price":57.94,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/runleader-front-panel-rl-hm038ag-h.jpg?v=1790569850","url":"https:\/\/redleafauto.ca\/products\/runleader-digital-maintenance-hour-meter-rl-hm038ag-h-ac-dc-5v-277v-ip68-epoxy-potted","provider":"Redleaf Auto","version":"1.0","type":"link"}