Feature:Universal fit for 12V cars.High sensitivity and easy operation.Numbers and pointer clearly show lighting on the dial for easy reading in the darkness.This gauge is designed and manufactured to exacting quality standards to give maximum service and reliability.Specification:Material: Aluminum+Glass+ABS(Acrylonitrile Butadiene Styrene)Power: DC(10-15V) 12V ProfessionalSize: 235 x 109 x 75mmEach Gauge Diameter: 52mm/2.0Boost Gauge Range: -30~20PSIWater Temperature Gauge Range: 40-120COil Pressure Gauge: 0-100PSIPackage Included:1 X Boost Gauge1 X Water Temperature Gauge1 X Oil Pressure Gauge1 X User Manual