2022 New 52mm Universal 2 in 1 Dual GaugeApplication: Marine Boats/Truck/Bus/Motor Home/Hot Rod/GeneratorsAbout the gauge:The device works, with a little delay (about 20 -80 seconds) of changes in the readings. Apparently, it is done in order not to react to the splash of water in the tank.Feature:- 52mm diameter Two in One Gauge show with easy installation - Programmable Input Resistance Ohm Signal to adapt different fuel /water/temperature sensor 0-190, 0-180, 10-180, 240-33, 240-30 - High Resolution View under sunshine - Installation Diameter: 52mm (2inch) - Reverse polarity protection and anti-fogging performance - Working Voltage:12V/24V - Working temperatures: - 40 to 85C - IP66 Waterproof - Water Level gauge alarm set: 20% - Sewage Level Gauge Alarm set: 80%INSTALLATION GUIDE1. Cut an 52mm (2-1/16 ) hole in the panel (II) allow a clearance of 55mm (2 3/16). behind the panel. 2. Remove fastening ring (I), insert gauge from front. Tighten gauge (III) using fastening ring ( I) 3. Connect cables according to the diagram/label.Setting MenuUnit R 1 R 21.Hold & Press the button, Power On Gauge, the LED screen will show Switch Show Unit, R 1R2 2.Unit Fuel Gauge, Water Level, HTG Sewage Level: % Water temperature: or 3.R1---Configure Top Row Signal Range Press Button to switch 000 ~006 For example, LED will show 00 1which means 0~180ohm, then release the button and wait digital flash to complete to save setting4.R2---Configure Top Row Signal Range Press Button to switch 000 ~006. For example, LED will show 002 , which means 10~180ohm, then release the button and wait digital flash to complete to save settingPackage:1PCS Gauge+Manual+Cable or 1PCS Sensor