1. Excellent value for money - We only offer the highest quality and most accurate clip-on tube thermometers. Temperature range: 40 - 120°C. 2. Quality assurance - Our carefully selected tube thermometer series are all manufactured to the highest standards expected by customers. 3. Easy to install - Highly sensitive and easy to use. Design: Black body and white bulb. Name: 2 - inch (52 mm) GM water temperature gauge, measuring range 40 - 120°C. 4. Dimensions: Approximately 70 x 70 x 60 mm. Color: Black body and white bulb. Material: Stainless steel. Function: Digital pointer displays water temperature, used for measuring the water temperature of automobiles. Measuring range: 40 - 120°C; Voltage: 12V DC, maximum current 0.3A; Diameter: 52 mm; Outer diameter of the display screen: 56 mm; Inner diameter of the display screen: 43 mm; Measuring range: 40 - 120°C; Sensor mounting thread: 10 mm. 5. Package includes: 1 x Water temperature gauge (Celsius), 1 x Sensor, 1 set of screws, 1 x User manual. 6. Installation method of the water temperature gauge: During installation, connect the ground wire from the water temperature three - way screw to the housing ground wire, and then the water temperature of the water temperature gauge can be displayed.