1、 Execution standards：

HJ/T375-2007 "Technical Requirements and Testing Methods for Environmental Air Samplers"

JJG 956-2013 "Verification Regulations for Atmospheric Samplers"

GB50325-2010 "Code for Indoor Environmental Pollution Control of Civil Building Engineering"

Scope of Application：

This instrument has a compact structure, reliable performance, and easy operation. It is an ideal choice for indoor environmental testing departments, environmental monitoring departments, industrial and mining enterprises, and health and epidemic prevention departments in various construction projects to collect various toxic and harmful gases. It can also be used for parallel sample collection.

3、 Main features：

1. The instrument adopts an imported thin film pump, which runs smoothly, has low noise, and has a long service life;

2. Adopting innovative constant current control technology, real-time display of sampling flow rate can enable the instrument to operate for a long time at the set flow rate value;

3. Equipped with backlit LCD display, ensuring clear display under low light conditions;

4. Real time accumulation of sampling volume and automatic conversion to standard condition volume;

5. The instrument adopts a multifunctional timing control module, and the sampling time can be set arbitrarily within 1-99h and 59min, with precise time control;

6. Using lithium batteries without memory effect, there is no need to discharge before charging, resulting in long battery life and good continuous discharge effect.

4、 Main parameters：