One: Product description of handheld particle counter P311 (dust sensor)

The Airy Technology P311 is a handheld particle counter (dust sensor) designed to measure particles from 0.3 to 5.0 µm at 0.1 CFM (2.83 LPM). Weighing only 1.26 lb (0.57kg), this product is user-friendly in design and simple to set up. The data of 3 size channels can be displayed simultaneously on its 3.5 "LCD screen.

P311 can store up to 8000 sampling records, which can be viewed locally or on a computer via USB cable. Products comply with ISO 21501-4, 1 year warranty.

Airy Technology P311 high quality, reliable performance, is the current market price very good hand-held particle counter.

Two: handheld particle counter P311 features and advantages:

1 The measuring range is 0.3~5.0 µm

2 Particle Flow 0.1 CFM (2.83 LPM)

3 Simultaneous measurement of 3 channel data

4 Weighs only 1.26 lb (0.57kg)

5 Long-life laser diodes

6 USB output

7 Removable and Rechargeable AA Batteries

8 contains carrying case, battery charger and download software

9 Store up to 8,000 sampling records and 199 sampling locations

10 View data on the local screen or through a computer

11 large LCD display

12 Concentration Limit 4,000,000/Cubic Feet

13 Complies with ISO 21501-4 and JIS B9921

14 lightweight high strength injection plastic housing

15 Easy to clean and wipe

16 1 year warranty