Description: Introducing our boat water gauge, a hassle-free solution for measuring water levels in your tank. With easy installation and calibration, this water tank gauge features clear wiring instructions and a lighted dial for quick and convenient setup. Compatible with a wide range of signal inputs, these boat gauges offers customizable display options with 7 colors to choose from. Built to last with durable materials and waterproof construction, this water tank level monitor ensures precise readings and reliable performance for your boat or vehicle.Specification:Working Voltage: 9-32V(12V/24V)Operation Mode: LCD display, Stepper MotorMaterial: Stainless Steel, GlassItem dimensions L x W x H: 2.54 x 2.54 x 2.54 inchesItem Weight: 0.22 poundsSignal Input : 0-190ohm, 240-33ohm, 240-30ohm, 0-180ohm, 10-180ohmPackage Includes:1 x Marine Water Level Gauge1 x Wiring Harness1 x Installation InstructionImportant Notes:1. Our water tank gauge is compatible only with level senders having resistive output within the range of 240-33ohm, 0-190ohm, 240-30ohm,0-180ohm, and 10-180ohm.2. Please note that this boat water level gauge is not compatible with fuel sending units having output signals of 0-30ohm, 0-90ohm, 73-10ohm, etc.3. If you are unsure about the type of sensor installed in your boat or vehicle, use a multi-meter to measure the resistance range of your sending unit when empty and full (e.g., approximately 8 and 184 ohms). If the range falls within 10-180 ohms, simply press and hold the Mode button for 3 seconds to enter setup mode.