1. Flow range: (100-2000) mL/min, (20-500) mL/min, (50-1200) mL/min

Traffic resolution:1mL/min (choose any flow rate)

2. High definition color touch screen, interface size: 108mm * 66mm

3. Constant current mode: Constant current and constant voltage (precise closed-loop control of flow rate not affected by voltage fluctuations and air resistance changes)

4. Gas path setting: The four gas paths can be set separately, and the sampling mode can be set separately

5. Color touch screen:Provide load resistanceReal time traffic, running time, standard condition volume, battery level, date and time, air pressure and temperature, and other various information

6. Provide load air inlet resistance test, test range: -40kpa-40kpa

7. The instrument comes with a lock screen function to prevent accidental operation from affecting the sampling process

8. The instrument is equipped with power-off protection function, and continues the previous sampling task after power on

9. Flow calibration: An open backend calibration system where users can perform self calibration on the instrument.

10. Volume calculation: Automatic calculation of working condition volume and standard condition volume

11. Data storage: It can store 320 sets of sampling data, which can be deleted, queried, and supported for USB flash drive export

12. Flow error: not exceeding ± 2.5%

13. Traffic stability: ≤ 5%

14. Traffic repeatability: ≤ 2%

15. Timing error: ≤± 0.1%

16. Working temperature: -10~50 ℃

17. Relative humidity: ≤ 95% RH

18.endurance：＞12-hour

19. Load capacity: ≥ 35000pa

20. Sampling mode: timed sampling, cyclic sampling, intermittent sampling, delayed sampling

21. Instrument size: 193 * 139 * 106mm (compact and small structure)

22. Instrument weight: 2.3kg (extremely lightweight)