Sierra 69994D Matrix Series 40PSI Water Pressure Gauge Features Smart Tachometer CANbus driven All 2 gauges receive data from tachometers IP67 waterproof submersible housings with Connector fitted Dry Nitrogen filled to minimize fogging LED dimmabl, 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 IP67 Bezel O.D. 2.35 Housing O.D. 2.10 Hole Size 2.1 California Residents WARNING Cancer and