Temtop PMD 331 Real-time Particle Counter for Air Quality Measurement

The PMD 331 is an innovative device can measure the 7 mass range simultaneously 0.3μm/ 0.5μm/ 0.7μm/ 1μm/ 2.5μm 5μm/ 10μm. With a TFT LCD large screen and seven front panel buttons making the device very easy to read and operate. The PMD 331 can record up to 2,000.000 readings and operate 8 hours in full charge. The unit has its own calibration mode and export function via USB or RS232

It also has a wide range of applications such as cleaning rooms. filter testing, IQA investigation, air quality monitoring, etc...

This particle counter is composed of a Laser emitter, Silicon Photocell, Opto-mechanical Structure, Optic, Cutter, Air Pump, Filter Device, and Electronic Circuit. 

  • Specifications
  • Literature
  • User Guide
  • Video
  • Software
  • Support

Key Feature:

  • Innovative Handheld particle counter: Measures 7 mass range simultaneous: 0.3μm 0.5μm 0.7μm 1μm 2.5μm 5μm 10μm in one minute from startup.

  • Easy to Read and Operate: 4" TFT LCD large display for viewing particle data, seven front-panel buttons for controlling a user-friendly, menu-driven platform for easy configuration.

  • Versatile Data Output Options: Stores up to 2,000,000 records and export data via USB port, RS-232 communication mode, or just Bluetooth.

  • Large battery capacity: Continuous 8 hours operation after fully charged.

  • Wide Application: Trusted in HVAC, dust-free workshop, surgical rooms, filter testing, IAQ investigation, air quality monitoring and etc.

Dimensions: 6.69*4.33*1.97 Inches
Working Principle: Laser Mie-scattering Principle
Working Temperature Range:0~50℃
Storage Temperature Range: -20℃~60℃
Measuring Range:  0~3,000,000 particles/ft³
Accuracy:±10%
Traffic: 2.83L/min
Laser Emitter:50mW, 780nm
Sampling Rate: 3~60s
Data Storage:2,000,000 points
Communication Mode:RS232/USB
Weight: 1.8 lb.


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