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 gauges 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: 10 to 180 OHMS Anti-scratch glass lens 12 VDC negative ground Can be adapted for 24 VDC systems Factory P/N GP9722*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: Voltage - Input Range (Volts): 12/24 V Gauge Type: Fuel Level Gauge Size: 2" Series: Dress White Box Set: No Box Dimensions: 4"H x 4"W x 5"L WT: 0.25 lbs UPC: 759266131170