Sierra 70003D Matrix Series Primary Fuel Gauge Features Smart Tachometer CANbus driven LCD on Tachometer and Speedo displays all available data and alarms All 2 gauges receive data from tachometers IP67 waterproof submersible housings with Connector fitted Dry Nitrogen filled to minimize fogging LED dimmable, automotive style backlighting red CANbus connectivity Size 2 Voltage 12 VDC Current Draw 0.15 - 0.20 A Operating Temperature -40C to 85C Ingress Protection IP 67 Bezel O.D. 2.35 Housing O.D