-Be suitable for all kinds of water temperature sensors , and display the temperature of the water tank -Use moving-magnet principle to drive the needle, featuring good endurance and anti-vibration -Operating temperature: -40C ~+85C -Protection rank: IP67 -Fixing dimension: 52mm(2 ) -Indicating Range: 40-120 25-120 -Working Voltage: 12V/24V -Choice between red and yellow backlight -Operation mode: LCD display, stepper motor -Protection grade is IP67, the whole body is completely waterproof -Excellent anti-fogging function -316 Stainless steel bezel with curved glass -Convenient Installation by multi-plug socket connecting way Water Temp Sensor Thread Type: M10*1.0(no alarm)-L1=27mm, L2=51.5mm M12*1.25(95 degree alarm)-L1=41mm, L2=71.5mm M14*1.5(95 degree alarm)-L1=41mm, L2=71.5mm M16*1.5(95 degree alarm)-L1=41mm, L2=71.5mm M18*1.5(98 degree alarm)-L1=41mm, L2=71.5mm 1/4 -18NPT(no alarm)-L1=28.5mm, L2=51mm 3/8 -18NPT(103 degree alarm)-L1=41mm, L2=71.5mm -Protection rank: IP67 -The main body is made of brass -Temperature response time: Minimum 3mins after power supply electrified -The temperature alarm tolerance: 3C -Rated power for alarm switch: 1.2W-3W -Rated voltage: 6V-24V -Protection Class: IP67, can work underwater 1m position 1x Water Temp. Gauge 1x Multi-plug socket 1x Installation Instruction