Feature: 1. Durable Materials: Made from 316L stainless steel front cover and anti fog curved glass cover, can be used for a long time even in acid, alkali and humid environments. Anti fog, IP67 waterproof and dustproof, very suitable for harsh sea environment. 2. Accurate Display: Adopts principle of moving magnet to accurately display the accumulated hours of the engine from 0.0 to 99999.9H, with high accuracy display, good repeatability, strong versatility, reliability and stability, and easy to read. 3. High Performance: Digital hour gauge makes use of ultra wide working voltage design, the long term working voltage is 9‑32V, and the maximum can reach 36V. With the features of low power consumption, long life, high accuracy and short start up time. 4. Professional Meter: Digital hour meter gauge is designed with 7 adjustable backlight for easy reading at night. The connection harness adopts a snap design for firm connection, making the gauge work even under strong vibration. 5. Wide Applications: 52mm hour gauge is a universal accessory, widely applicable to engines, generator sets, ships, construction machinery, agricultural machinery, various vehicle modifications, and much more to meet various demands. Specification: Item Type: Digital Hour Gauge Material: 316L Stainless Steel Bezel, Anti Fog Glass, PC Accumulated Hours Display Range: 0.0-99999.9H Protection Grade: IP67, the whole body is completely waterproof, can work at 1m underwater; excellent Anti fog function Input Signal: Stepper Motor Backlight Color: 7 colors, can be adjusted by the button on the back Working Voltage: 9-32VDC Working Current: ≤70mA Operating Temperature: -30℃ to +75℃ Storage Temperature: -40℃ to +85℃Size: Approx. 52mm/2.0in. Package List: 1 x Digital Hour Gauge1 x Harness1 x Manual