This Innovate Motorsports dual gauge displays both water temperature via the central numerical display, and battery voltage via the exterior LEDs. The temperature can be switched from degrees C to degrees F and the range is 49-138 deg C (120-280 deg F). The voltage range is 6-25v.Dual gauge ideal for space saving on dashboards and better value for moneyMTS connection to link to other Innovate products for data loggingIncludes interchangeable black and white dial facesIncludes interchangeable black and silver bezelsUser settable warnings for high temperature and low voltage to alert of potential problemsThis 52mm diameter professional water temp / voltmeter gauge is suitable for Motorsport or performance road car use. It utilises MTS (Modular Tuning System) serial connections to allow linking to other Innovate devices for data logging. The LED's  around the perimeter of the gauge can be set up as a single indicating LED or as a fill bar for a quick visual reference of voltage range.KIT