GM41H is a and cost-effective instrument, which is used to measure and display engine oil pressure, level, battery voltage and accumulated running time of engine. The instrument adopts high brightness LED digital display tube, which is . The parameters can be adjusted and set by pressing key to meet requirements of different applications. In addition, European terminal connection is adopted to facilitate installation, removal and replacement of modules. It is controlled by 32-bit high performance single chip microcomputer; The measured value is displayed by 3 screens and 4 high brightness digital tube; A variety of built-in sensor curves can be , and sensor parameter curve can be customized; With maintenance prompt function, three kinds of maintenance countdown can be set, and first maintenance and routine maintenance can be distinguished; It has two sensor analog inputs, among which oil pressure sensor is compatible with voltage signal input; 1. Main Features All parameters can be modified through panel buttons; It is equipped with standard waterproof ring, and protection performance of panel reaches IP54 after installation; The modular design: all wiring is completed through European terminals, so assembly, wiring, maintenance and replacement of equipment are very easy and convenient 2. Parameters Display Engine oil pressure Engine level Engine battery voltage Total running time 3. Protection Low oil pressure Sensor open Maintenance expire Low level warning Battery under voltage warning 4. Parameters Working voltage:DC8V-36V Continuous Power consumption: Standby:24V:MAX 1W Working:24V:MAX 1.5W MAX Accumulating Time: 999999.9Hours(Min storage time:1min) Working condition: -25-65 Storage condition: -40-85 Protection Level: IP54:when coolantproof rubber gasket is added between meter and its panel Insulation strength Apply .2kV voltage between high voltage terminal and low voltage terminal; The leakage current is not more than 3mA within 1min. Overall dimension:78mm x 78mm x 63mm Panel cutout:67mm x 67mm Weight:0.15Kg Color:Black Material:ABS Package Contents: 1 x Multifunctional Digital Display Meter Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.