WESPC Original Mebay GM50CR Engine Digital Display Multifunction Meter Brand Name Mebay Place of Origin China DC Supply 8-36 V Installation Size 91mm*91mm Size 100mm*100mm*77mm Stock Yes Overview GM50C MK2 is designed specifically for parameter monitoring and fault monitoring of diesel, gas and other engines. It comes standard with a CAN communication port and built-in J1939 protocol, which can read relevant parameters through the CAN interface of the engine ECU and display