◆ Multifunctional, which can calibrate the flow of smoke, dust and flue gas, atmospheric sampler with small flow, medium flow and large flow.

◆ It can also calibrate micro pressure and gauge pressure separately

◆ Temperature and atmospheric pressure can be automatically measured or entered manually

◆ Large-capacity data storage and query, with digital interface, can be connected to an external printer for printing or connected to a microcomputer for data communication

◆ Automatic conversion of standard flow rate, direct reading

◆ The flow in various states can be automatically converted and displayed at the same time

◆ AC and DC dual purpose, built-in high-energy lithium battery, long working time

◆ With software parameter calibration function and user password protection function

◆ Fault detection automatic protection

◆ Equipped with various types of adapters to facilitate docking and calibration with different sampling instruments