Features: High accuracy. for Touch screen, easy and convenient to use. 4 types for you to choose, multifunctional. You can set high water temperature/low voltage warning. S7 level waterproof, fall resistant, high temperature resistant. Specifications: Material: PC Size: Approx. 6.3x3.7cm/2.48x1.46in Voltage: 9-24V Waterproof Level: S7 Type: A: for Time/Ambient Temperature/Voltmeter/Stopwatch(4 in 1) B: for Time/Water Temperature/Voltmeter/Stopwatch(4 in 1) C: Rotating Speed/for Time/Ambient Temperature/Voltmeter/Stopwatch(5 in 1) D: Rotating Speed/for Time/Water Temperature/Voltmeter/Stopwatch(5 in 1) Note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 2x Cable Tie 2x Screws 1x Plastic Mount 1x Manual