Sensor Feature: - Protection ank: IP67 - Resolution range: 21 mm - Assembly: SAE standard 5 holes - Rated current for alarm switch: 500mA - Operating temperatures: - 40 to 85 Celsius - Fit for sewage / Fuel Level Gauge and Water Level Gauge - Sensor Length :150MM~600MM(support customized) - Mounting: 5 pieces of M5 screws and 2 mm thick gasket - Output signal: 0~190 ohm (Standard European), Gauge Feature: - Backlight Color : 8 Color Backlight - Protection rank : IP67 - Input signal : 0~190ohm - Working Voltage : 9~32V(12V/24V) - Indicating Range : Empty-1/4-1/2-3/4-FULL - Material:Plastic,Rubber,Metal - Install diameter: 52mm (2'') Operation: - 1, Press the Mode button (less than 1 second) to change the backlight color: Backlight changed in sequence: red (default) green blue white yellow yellow green orange Purple (automatic). Automatic: As the gauges was set with the automatic , the backlight will be off for 2 seconds then lighten up, And will switch the backlight color as above sequentially. - 2,Users could select the input resistance as down below operations if you have Fuel/Water/Sewage level gauge.Hold the Mode button for 3 seconds to enter the setting mode, back light flickering for a while. The needle point at the "E" position, and you could select the corresponding parameter via pressing the button as down below form. Connection: 1,Red --+9~32VDC 2,Black-- Signal Input 3,Orange--Blacklight(+) 4,Blue--Ground(-) Specification: Operating Voltage:9~32VDC, Operating current:70mA(24V); Operating temperature:-30~+75 Storage temperature:-40~+85. Package:( Gauge or Sensor) 1PCS Gauge+Cable+Manual or 1PCS Sensor Support Customized the Sensor and Gauge .