Features Waterproof Material - Made of ABS with epoxy resin encapsulated shell, waterproof, shockproof, withstand up to 85℃, this horometer and tachometer is durable and sturdy for long term use. Engine Hour Counter with LCD Display: Records up to 9999.9 hours, Max RPM range of 99999, standby time over 20000 hours with flashing indicator. Wide Application The engine horometer is suitable for various mechanical equipment such as generators, vibrators, shredders, lawn mowers, motorcycles, cars, trucks, snowmobiles and construction vehicles. Mini Engine Horometer - Easy to install without battery, just connect it to the spark plug wire and fix it with screws or flanges. Details Specifications: Made of ABS material, the engine horometer accurately tracks run time and RPM for maintenance and monitoring purposes. 1. Waterproof Material - Made of ABS with epoxy resin encapsulated shell, waterproof, shockproof, withstand up to 85℃, this horometer and tachometer is durable and sturdy for long term use. 2. Engine Hour Counter with LCD Display: Records up to 9999.9 hours, Max RPM range of 99999, standby time over 20000 hours with flashing indicator. 3. Wide Application The engine horometer is suitable for various mechanical equipment such as generators, vibrators, shredders, lawn mowers, motorcycles, cars, trucks, snowmobiles and construction vehicles. 4. Mini Engine Horometer - Easy to install without battery, just connect it to the spark plug wire and fix it with screws or flanges. 5. Details Specifications: Made of ABS material, the engine horometer accurately tracks run time and RPM for maintenance and monitoring purposes. Specification: Item Type: Hour Counter Material: ABS Records up to 9999.9 hours Maximum speed range is 99,999 RPM Standby time is more than 20,000 hours Packing List: 1 x hour counter. 1 x cable. 2 x screws. Package List 1 x Hour Meter 1 x Wire 2 x Screws