The motorcycle tachometer offers precises data accuracy and easy operation with tachometer, hour meter, and maintenance timer functions. It displays current engine speed up to 15300RPM and tracks engine running time up to 9999.9 hours. The maintenance reminder timer ensures timely servicing, while the built-in CR2450 battery retains data after replacement. With easy installation and reliable quality, this tachometer is suitable for a wide ranges of vehicle and equipment, making it a versatile and essential tool for maintenance tracking. Features: Motorcycle tachometer supports tachometer, hour meter, and maintenance reminder timer functions, easy to operate and use, with precises data accuracy. Tachometer function: Continuously detects the engine ignition signal, the main interface displays the current engine speed, with a speed ranges of 0-15300RPM. Timing mode: Helps you track the engine's running time. When the engine is turned off, the display will show the total running time of the engine and remain visible, with a ranges of 0-9999.9H. Maintenance reminder timer: Set the engine maintenance reminder time according to maintenance needs, with a ranges of 0-9999.9H, and the reminder is indicated by a flashing SERVICE message. Built-in replaceable CR2450 battery, retains data after battery replacement; operation buttons can be turned off, data is retained after shutdown. Easy to install, simply connect to the spark plugs, reliable quality, with an IP65 waterproof rating. Widely applicable, suitable for off-road motorcycles, ATVs, UTVs, tractors, generators, lawnmowers, chainsaws, etc. Specifications: Color: Black Material: ABS Display: LCD Timing Ranges: 0-9999.9H RPM Ranges: 0-15300RPM Battery: Built-in CR2450 Battery Waterproof Rate: IP65 Cable Length: 1.75m Item Size: 73.5 * 46.7 * 20mm/ 2.9 * 1.8 * 0.8in Package Size: 73 * 73 * 48mm/ 2.9 * 2.9 * 1.9in Package Weight: 65g/ 2.3oz Packing List: 1 * Engine Hour Meter 2 * Cable Tie 1 * User's Manual Package List 1 * Engine Hour Meter 2 * Cable Tie 1 * User's Manual