- The liquid pressure inside the tank is detected by diaphragm, and the pressure is transmitted to bourdon tube in the indicator through enclosed liquid, and rotate the gear.
- Mechanical and simple structure : Easy installation
- No air or electrical power supply needed : Saving energy and economical
- Compact Size : Saving and standardizing installation time
- The indicator can be installed at a convenient position. : No need to design a ladder even for high tanks
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