Mechanical Auto Trio Gauge Set Water Temp+Amperes+Oil Pressure Gauge Chrome With PanelSpecification:Gauge Type: MechanicalGauge Color: Black Face with Metal BodyBezel Finish: ChromePanel Color: ChromeLight color: Yellow （Bulb Light）Voltage: 12VGauge body : 52mmInner Diameter: 42mmOverall Diameter: 58mmGauge Height: 31mmMounting Thread End: 5/8"Package size: 90mm x 80mm x 240mm(Length x width x height)Included Adapter/Fitting: 1/8" NPT Male to 1/8" compression fitting， 1/8" NPT Female to 1/8" compression fitting， 1/8" NPT to 1/4" NPT bushing， 3/8" NPT and 1/2" NPT adapter fittings.Measurement Range :Water Temperature gauge:100-220° F，38-104℃Amperes gauge: 0-60 AmpsOil pressure gauge: 0-80 PSI Feature:1.100% Brand new and high quality.2.Have it， you have the equivalent of an ammeter， water temperature and oil pressure gauge.How user-friendly design!4. Metal bracket，6' nylon tubing.5.Panel made from pressed steel finished in chrome.Size 140mmx190mm x 75mm.6.The gauges fit in a 52mm hole.7.Top edge has four mounting holes.8.It is Mechanical Trio Gauge Set . Note:1.We provide clear pictures， measurements where possible. Please check as much as possible to make sure the item is the one that you need.2. Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm)3. Instruction is not included.Package included:1 x Oil Pressure Gauge1 x Water Temp Gauge1 x Amperes Gauge1 x Gauge Panel Some installation accessories