GM70C has CAN interface, built-in J1939 protocol, alarm protection function, USB communication port; RS485 communication port, compatible with MODBUS communication protocol. GM70C: engine instrument, 4.3-inch color LCD screen, CAN interface, RS485 interface, USB interface, can set the main engine or auxiliary engine working mode, alarm protection output, fuel level input. 32-bit high-performance single-chip control; u4.3-inch TFT color large-screen LCD display, with 3 language switches, can be customized according to needs; Pointer instrument plus digital display UI interface, -new design, integrating dynamic and precise; The screen protector adopts hard screen acrylic material, which is wear- and scratch-; Silicone panel is used, which is effectively waterproof, oil-proof and UV-proof, with good operation feel and long service life; With USB interface, parameters can be set and real-time monitored through the USB interface, and parameters can be set without power supply; With RS485 interface, compatible with MODBUS protocol; Standard CAN communication interface, built-in J1939 protocol; Collect and display a variety of engine parameters; The setting interface adopts a multi-level menu classification design, which is convenient and fast; Maintenance to timing function, built-in real-time clock, maintenance timing or date can be set; It has an alarm recording function, which can save 50 sets of engine-related parameters when a fault alarm occurs, making it easy to find the cause of the engine fault; It has 3 configurable relay outputs with multiple functions to choose from; It comes with a waterproof ring as standard, and the panel protection performance reaches IP54 level after installation; Colour:Photo Color Material:plastic The product appearance slightly from batch to batch, but it does not affect the use Package Contents: 1 x Engine Monitoring Device Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.