Item Type: Tachometer_x005F_x000D_ Material: Stainless steel 316L bezel, anti fog glass_x005F_x000D_ Tachometer Display Range: 0-4000RPM_x005F_x000D_ Engine Cumulative Hours: 0.0-99999.9H_x005F_x000D_ Protection Class: IP67 waterproof, can work at 1m underwater_x005F_x000D_ Backlight Color: Red_x005F_x000D_ Working Voltage: 9-32V DC_x005F_x000D_ Working Current: 60mA_x005F_x000D_ Working Temperature: -30-+75_x005F_x000D_ Storage Temperature: -40-+85 1IP67 Waterproof: The 4000RPM engine tachometer is made of 316L stainless steel bezel and anti fog curved glass, which can be used for a long time even in acid base and humid environments. 2High Accuracy: The engine tachometer uses a stepping motor to drive the pointer, which accurately displays the engine speed from 0?4000RPM, which is suitable for various vehicles such as cars, trucks, boats, etc. 3Hourmeter: The tachometer can accurately display the accumulated hours of the engine from 0.0 to 99999.9H, with a red backlight for night driving, with strong versatility and ease of use. 4Wide Voltage Design: The long term working voltage of the 4000RPM engine tachometer is 9?32V, up to 36V, with low power consumption, long life and short start up time. 5Shockproof: Buckle design, strong connection, make the instrument work even under strong vibration, can be used in engines, ships, construction machinery, etc.1 x_x005F_x000D_ _x005F_x000D_ Tachometer 1 x Manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia