1、Made of stainless steel 316L bezel and anti‑fog glass, have excellent anti‑fog performance and waterproof performance. 2、The waterproof rating of the dial is IP67, and the back cover is IP5, can be used for a long time even in the cold sea environment. 3、The maximum depth indicator is about 100m/110yd, allowing you to know the depth of the bottom in real time. 4、Easy to install, good durability and anti‑vibration, equipped with alarm performance, flexible and simple operation. 5、Suitable for yachts, small and medium‑sized boats, fishing boats and other marine vehicles to better meet your needs. Item Type: Depth Gauge Material: Stainless Steel 316L + Anti-Fog Glass Installation Diameter: Approx. Φ52mm/2in Depth Indication Range: Approx. 100m/110yd Backlight Color: White Working Voltage: 12VDC Working Current: ≤60mA Working Temperature: -30℃ to +75℃ Storage Temperature: -40℃ to +85℃ Protection Grade: IP67, the back cover is IP5 Operation: A. This device is work with 12V system only, to indicate the depth appointed. Normally, the buzzer beeps once when it was connected correctly then turn on the power. B. Keypad "Mode": Quick press the keypad "Mode" to switch SH/DP/KL/ UN Hold the keypad "Mode" to turn on/off the monitor. Short press the keypad “▲"“▼"to set the value required. Hold the keypad “▲”“▼"to keep the digital increasing/decreasing fluently. Parameter: SH: (Low level alarm) Range : 0-0.6-19.9, when the level no more than value(SH) appointed,the symbol flickering and the buzzer beeps all the time. If SH=0, no alarm alarm setting range is 0.6-19.9 Range: 1. Unit “M”: 0-99 2. Unit “FT": 0-199 3. Unit “F”: 0-49 If the level exceed the a pointed value , the buzzer will beeps twice Keel offset (KL): Range: 1. Unit“M”: 0-6.0 2. Unit“FT": 0-19.9 3. Unit“F”: 0-3.3 Installation Notes: 1. Make a 52mm/2in diameter hole on the panel of your cabin panel and instrument panel, insert the instrument into the hole. The panel corresponding to the instrument panel is marked with a boss, and make a small notch at this position to ensure that there is at least 52mm/2in of the instrument panel on the back of the instrument. 2. After installing the instrument into the panel, screw it down with the fixing ring. 3. Connect the wires and connect the instrument case directly to the 12 power supply. 4. Insert the wire harness and fix it firmly on the table. Wiring Instructions: Red wire to the positive Orange wire to the backlight Blue wire to the negative 1 x Depth Gauge 1 x Sensor (with Wire) 2 x Fixing Screw 1 x Bundle of Power Cord 1 x Instruction Manual