No emissions, environmental protection, economy, safety and reliability Online monitoring of SF6 circuit breakers or combined electrical appliances such as water, density, temperature and other parameters Realize micro-water pressure and temperature compensation, density temperature compensation, make micro-water and density data true and reliable Using sensors with a variety of patented technologies and self-calibration functions The acquisition unit can be put into operation and exit without affecting the state of the main equipment, and does not affect the normal operation of the main equipment The internal circulation technology is used inside the acquisition unit to greatly improve the sampling accuracy On-site large-screen LCD display, drawing trend graphs, real-time uploading Built-in density relay passive output, movable point value of blocking/alarm/overpressure can be set Fully enclosed design, waterproof and dustproof, anti-high frequency interference, suitable for indoor and outdoor A variety of valve joints, easy to install and disassemble, saving maintenance costs