The external level gauge provides a true non-contact measurement of the level height in a closed container.

The ultrasonic sensor is installed directly below the outer wall of the measured container, and it is easy to install and can be installed online without opening a hole in the measured container.

 It can accurately measure the level of various toxic substances, strong acids, strong alkalis and various pure liquids in high temperature and high pressure closed containers.

 The external type liquid level gauge has no special requirements for the material of the container, and adopts flameproof design to meet the requirements of explosion-proof, and can be widely used.