• Two channels of air sampling and one way of particulate matter sampling. The sampling mode can be set flexibly.

• High precision electronic flowmeter, closed-loop feedback, automatic constant current, automatic compensation of flow according to the change of load.

• Using the imported brushless sampling pump, the flow is more stable, more durable, and the noise is low,

• Wide temperature OLED display screen has wider adaptability, and can be used normally in alpine regions and tropical areas with high temperature and humidity.

• The sampling data is saved automatically. Bluetooth printer is selected to print the sampling data in time. Automatic matching of printers can realize one to many printing.

• It can automatically accumulate the sampling volume, and can view the volume of accumulated working condition and standard condition in real time

• Sampling pump protection: automatic flow and overload alarm protection to ensure the effectiveness of the sample.

• Automatic protection of sampling data after power failure and automatic recovery of sampling when calling.

• Optional DC external power supply interface. If there is no power supply in the sampling site, high capacity lithium battery backup power supply can be selected. When the instrument is fully loaded, the backup power supply can work continuously for more than 30 hours.

• Wide range atmospheric pressure sensor, automatic measurement of atmospheric pressure on site, can be used in high altitude areas.

This instrument is a new instrument designed by our company. It is an improved version of the original th-150 rotor flow version. Electronic flowmeter is used to measure the flow rate, the flow error is smaller and the flow rate is accurate. The instrument consists of two channels of ambient air sampling (can collect so 2, NO x and other environmental pollution gas components) and one channel of particulate matter sampling (TSP, PM 10, PM 2.5 can be collected with different cutters). For the convenience of customers, the software interface operation method is consistent with the original th-150 sampler. The software is rewritten, the circuit is redesigned, and the structure and appearance are redesigned. It is a brand new instrument.