A. Product Overview

The Temtop PMD 371 is a portable handheld particle counter that detects particle sizes including 0.3μm, 0.5μm, 0.7μm, 1.0μm, 2.5μm, 5.0μm, and 10.0μm. It simultaneously measures particle concentrations such as PM1, PM2.5, PM4, PM10, and TSP.

It is ISO 21501 certified and incorporates components such as a German pump and laser system to ensure accuracy. The device features a 4-inch TFT LCD display, built-in storage of up to 2,000,000 data sets, and supports USB export for further analysis.

The instrument is designed as an all-in-one portable solution, weighing less than 1 kg, with a rechargeable lithium battery and continuous operation capability.

B. Working Principle

The PMD 371 operates using the light scattering technique. A built-in laser diode emits light, and when airborne particles pass through the sensing area, they scatter the light. The scattered light is detected and analyzed to determine particle size and concentration.

The device uses a laser source (50mW, 780nm) and controlled sampling intervals to provide accurate particle measurement data across multiple size channels.

C. Why It Is Used

The PMD 371 is used for measuring airborne particulate matter and monitoring air quality by detecting multiple particle sizes and concentrations simultaneously.

Its ability to store large volumes of data and export it for analysis makes it suitable for applications where continuous monitoring, reporting, and data tracking are required.

The device also supports calibration standards and controlled sampling, ensuring consistent measurement performance.

D. Suitable Buyers

• Professionals requiring particle measurement and air quality monitoring
• Users needing portable, on-site monitoring solutions
• Organizations requiring data logging and export for analysis
• Users needing ISO-standard compliant particle monitoring instruments

FAQ

Q1. What particle sizes does the PMD 371 measure?

It measures particle sizes of 0.3μm, 0.5μm, 0.7μm, 1.0μm, 2.5μm, 5.0μm, and 10.0μm.

Q2. What particulate concentrations are displayed?

The device displays PM1, PM2.5, PM4, PM10, and TSP concentrations.

Q3. What is the measurement principle used?

It uses the light scattering technique with a laser source for particle detection.

Q4. Does the device support data storage and export?

Yes, it supports storage of up to 2,000,000 data sets and allows data export via USB.

Q5. What type of display does the device have?

It comes with a 4-inch TFT LCD screen for easy reading of multiple parameters.

Q6. Is the device portable?

Yes, it is a handheld device weighing less than 1 kg and designed for easy carrying.