A. Product Overview

The Temtop PMD 351 is a professional aerosol monitor developed for particulate matter measurement. It supports 5-channel particle size monitoring, including PM1, PM2.5, PM4, PM10, and TSP.

The device operates with a light scattering measurement principle and integrates components such as a German pump and filters from global suppliers to ensure accuracy and reliability.

It includes a 4-inch TFT LCD screen for easy viewing, built-in memory capable of storing up to 2,000,000 data records, and supports data export via USB disk or PC.

The PMD 351 is lightweight (less than 1 kg), equipped with a rechargeable lithium battery, and provides approximately 8 hours of operation, making it suitable for portable use.

B. Working Principle

The Temtop PMD 351 operates on the light scattering principle.

Air is drawn into the device at a flow rate of 2.83 L/min. Inside the chamber, a laser diode (50mW, 780nm) emits light onto airborne particles. When particles pass through the laser beam, they scatter light, and the scattered light intensity is measured.

Based on the detected light intensity, the instrument classifies particles into PM1, PM2.5, PM4, PM10, and TSP categories and displays the results simultaneously on the screen.

C. Why It Is Used

The Temtop PMD 351 is used for measuring and monitoring particulate matter concentration in air.

It is designed to:

• Detect multiple particulate sizes simultaneously
• Provide accurate and reliable particle concentration data
• Enable data storage and export for analysis
• Support monitoring through portable and handheld operation

The device allows users to monitor air quality conditions and collect particulate data efficiently.

D. Suitable Buyers

Based on the specifications and features provided in the PDF, the Temtop PMD 351 is suitable for:

• Users requiring particulate matter measurement (PM1 to TSP)
• Applications needing portable air monitoring devices
• Users requiring data logging and export functionality
• Environments where real-time particle measurement is required
• Professionals performing on-site air quality monitoring

E. FAQ

1. What parameters does the Temtop PMD 351 measure?
It measures PM1, PM2.5, PM4, PM10, and TSP.

2. What is the measurement principle used in PMD 351?
It uses the light scattering principle for detecting airborne particles.

3. What is the flow rate of the device?
The flow rate is 2.83 liters per minute.

4. How much data can the device store?
It can store up to 2,000,000 data records.

5. How is data exported from the device?
Data can be exported via USB disk or to a PC.

6. What is the operating time of the device?
The device operates for approximately 8 hours under normal conditions.

7. Is the device portable?
Yes, it is lightweight (less than 1 kg) and designed for easy carrying and on-site monitoring.