1. Practical: The working voltage is 9‑32V, up to 36V, low power consumption, long life, high accuracy, short start up time, the highest depth indication of 100m, you can instantly know the depth of the water.
Specification:
Item Type: Depth Sounder
Material: Stainless steel 316L, anti fog glass, ABS
Mounting Hole Diameter: Approx. Φ52mm/2in
Depth Indication Range: 0-100m/0-328FT
Backlight Color: White
Operating Voltage: DC 12V
Instantaneous Voltage: DC 9-32V, up to 36v
Operating Current: 60mA
Operating Temperature: -30 °C- + 75 °C
Storage Temperature: -40 °C - + 85 °C
Dial Waterproof Rating: IP67
Back Cover Waterproof Rating: 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 :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 ppointed 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

How to Use:
Step 1: Open a 52mm diameter circular hole in your center control or other pre installed position
Step 2: Put the instrument into the open round hole
Step 3: Correspond the bracket screw hole to the screw on the back of the instrument, then tighten it with the screw and clamp the panel with the bracket and the watch frame
Step 4: Plug the power harness