Temtop PMD 331 Handheld Particle Counter Data Storing for Air Quality Measurement

Temtop PMD 331 Handheld Particle Counter Data Storing for Air Quality Measurement Dimensions 6.69 x 4.33 x 1.97 inches Working Principle Laser Mie scattering Principle Working Temperature Range 0 to 50℃ Storage Temperature Range 20 to 60℃ Measuring Range 0 to 3,000,000 particles/ft³