Set alarm point and set peak memoryWith digital display, visual observationParameter display is accurate and stable, low power consumptionEasy to install, stable performance, anti-vibration, anti-shockBackground light: Red LED + White BackgroundName:Water Temperature MeterMeasurement Range: 100~300 FahrenheitWorking Voltage: 12VApplicable models: UniversalInstallation Precautions:1. This product is suitable for 12V power supply, and it is strictly forbidden to use a power supply exceeding 18V2. The power access of this product is red and black power cords, the red line is connected to +12V, and the black line is connected to -12V. 3. Other connections are connected in accordance with plug-and-play connectors, and it is strictly forbidden to damage or replace other connectors;Colour:blackMaterial:ABS Size:60. 5 x 60. 5 x 28. 5mmFixing dimension: 60mmPackage Contents:1 x Water Temperature Meter1 x connection line1 x sensor1 x InstructionOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.