ITEM NAME:Universal Electric Water Temperature Gauge 52mm, High Perfomance Automotive Description: Numbers and pointer clearly shows the temp. Lighting on the dial for easy reading in the darkness. High sensitivity and easy operation. Professional installation is Highly Recommended It can indicate:Low coolant level/Defective thermostat/Loose or missing fan/Water pump belts/Plugged or leaking rediator/Incorrect ignition timing Specification: Voltage:12V For 12V car and motorcycle Diameter:Approx.2''(52mm) Reading Temp:40-120 Â °C Sensor Mounting Thread: 10mm / 0.4" Material:Stainless Steel Package Includes: 1 x Water Temp Gauge 1 x Temp Sensor 1 x Bolts Pack 1 x Instruction SKU: DMO0011769952003168.High sensitivity and easy operation. 1 x Water Temp Gauge. It can indicate:Low coolant level/Defective thermostat/Loose or missing fan/Water pump belts/Plugged or leaking rediator/Incorrect ignition timing.