Dress White 2" Fuel Level Gauge (E-1/2-F)Perimeter-lighted White dial with bold Black graphics, White aluminum bezel, contoured Black pointer and flat glass lens.Fuel Level gauge operates by sending a low amperage current through the gauge&';s meter to ground via a sending unit with variable resistance. The resistance of the sending units increase or decrease with the changes in pressure, temperature, etc...As the sender&';s resistance varies, the amount of current allowed to flow through it to ground changes and the meter deflects, showing the level of fuel.2" - Hole Size: 2.0625" (53mm)Specifications: 240 to 33 OHM Anti-scratch glass lens 12 VDC negative ground Can be adapted for 24 VDC systems Factory P/N GP9389*Sold as an Individual**Gauge Cover not IncludedThis product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns. Specifications: Gauge Type: Fuel Level Series: Dress White Voltage - Input Range (Volts): 12/24 V Gauge Size: 2" Box Set: No Box Dimensions: 4"H x 4"W x 5"L WT: 0.3 lbs UPC: 759266131019 Quick Guide (pdf)