Set alarm point and set memory With digital display, visual observation Parameter display is accurate and stable, low power consumption Easy to install, stable performance, anti-vibration, anti-shock Background light: Red LED + White Background Name:Water Temperature Meter Measurement Range: 100~300 Fahrenheit Working Voltage: 12V Applicable models: Universal Installation Precautions: 1. This product is suitable for 12V power supply, and it is strictly forbidden to use a power supply exceeding 18V 2. The power access of this product is red and black power cords, the 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:black Material:ABS Size:60.5 x 60.5 x 28.5mm Fixing dimension: 60mm Package Contents: 1 x Water Temperature Meter 1 x connection line 1 x sensor 1 x Instruction Only the above package content, other products are not included. Note: Light 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.