The FM120 mechanical fuel flow meter is a high-precision liquid measurement device. Its core function is to accurately measure the instantaneous flow and cumulative total volume of liquids such as fuel. It is suitable for systems with high requirements for measurement accuracy and reliability. It adopts an aluminum alloy measurement chamber combined with a polybutylene swing disc to ensure a stable and reliable measurement process, and is compatible with various liquid media. It is equipped with a four-digit sub-total display (which can be reset) and an eight-digit total cumulative display (which cannot be reset), taking into account both single-time measurement and long-term data traceability needs. The maximum working pressure is 50 PSI (3.5 BAR), and the burst pressure reaches 400 PSI (28 BAR), featuring excellent pressure resistance safety. The installation process is simple, and it supports on-site rapid calibration, suitable for various working conditions. It is widely used in industrial fuel supply, agricultural irrigation, chemical liquid transportation and other scenarios, especially suitable for scenarios with high precision measurement requirements.