Description: IP67 waterproof and dustproof grade. With curved glass (with anti-fogging function). With -wide working voltage design. PC material dial. The meter comes with an alarm signal and does not require an additional alarm signal from the sensor. Using a high-precision stepper motor, the pointer acceleration and deceleration curve motion can extend the life of the motor. High-brightness LEDs are used for backlighting, which has high brightness and long life. Specification: Dial: Black Material: PC polycarbonate Size: 8x8x7cm / 3.1x3.1x2.75 inch Working Temperature: -40~85 Protection Level: IP67 Working Voltage: DC 8~16V, DC 18~32V Output Signal: 10~185 ohms Working Current:<100mA Display Accuracy:<3 Indicating Range: 0~5 Bar 90 display angle 52mm (2") mounting hole Package Includes: 1 Piece Gauge (back screw , gasket) 1 Piece Cable 1 Piece Rubber Stopper 1 Piece Instruction Manual : Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !