1. Suitable for various water level sensors, displaying the position of the water tank level 2. Exquisite and compact, durable, waterproof and dustproof, easy to install 3. Adopt cross coil to drive the pointer, anti-shock and anti-fog 4. Main application areas: boats, construction machinery, vehicles, generator sets, engines, etc. 5. Front cover material: SUS316, anti-fog arc glass 6. Connection mode: plug-in connection 7. Operating voltage: 9-32V 8. Indication range: E-1/2-F (E means empty box, 1/2 means half, F means full) 9. Input signal: 240-33 ohms (Americas standard) 10. Protection level: IP67, can work normally in the position of 1m underwater 11. Wiring: red wire to the positive power supply, blue wire to the negative power supply, black signal wire to the sensor, orange backlight wire to the positive power supply 12. Installation size: about 52mm