Feature: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.How to Use:Fix the instrument on the dashboard of the center console and connect the power cord.Specification:Item Type: Depth GaugeMaterial: Stainless Steel 316L + Anti-Fog GlassInstallation Diameter: Approx. Φ52mm/2inDepth Indication Range: Approx. 100m/110ydBacklight Color: WhiteWorking Voltage: 9-32VDCWorking Current: ≤100mAWorking Temperature: -30℃ to +75℃Storage Temperature: -40℃ to +85℃Protection Grade: IP67, the back cover is IP5Operation: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 be