1. Switch: The water level alarm automatically activates and shuts off bilge pumps when water reaches specific levels. 2. Accurate Alarm:The precise operation of the sensor switch ensures proper bilge pumping and provides peace of mind to the ship safety. 3. Automatic Sensor: Marine water level induction switch adopts high induction technology, intelligent and automatic, which can accurately detect the change of ship water level and the accuracy of data. 4. High Stability: Marine water level sensor switch is made of excellent material, and the manufacturing and testing process have been strictly controlled, which can run stably, having the characteristics of . 5. Wide Application: Bilge pump can be used in aquarium, fishing boats, fountain and other places to easily drain the water to the ship in the proper water level. Marine Bilge Pump Sensor Automatic Alarm Water Level Sensor Switch Ship Yacht Alarm Apparatus 24V Item Type; Marine Bilge Pump Sensor Operating Voltage: DC12V/24V Maximum Current: 12V/20A, 24V/10A Size: 16AWG/1000MM Maximum Operating Temperature: 60℃ Maximum Flash Temperature: 90℃ Fitment: Ship, Yacht How to Use: Wiring: The manual terminal is directly connected to the brown (+) water pump cable and the black (signal output) cable of the electronic water level switch. Automatic terminal on electronic water level switch brown (+) bar The black (-) pump wire is connected to the negative battery terminal Note: 1. Before installation, that the power supply is off and the waste water system is empty. 2. to liquids, , chemicals, etc. 3. Apply to fresh water or bilge water only. 4. Connect the series fuse (Note: Install the appropriate amperage specified for your pump node). 5. The correct voltage range is 10.5v d.c to 28.8V d.c. Do not use any other voltage, or use AC or AC to DC conversion power. 6. The electric field sensor can absorb up to 20 amps of current. Color: Black Material: plastic Package Contents: 1 x Marine Bilge Pump Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.