Temtop PMD 331 Air Quality Monitor with Particle Counting 7 Channels, USB/RS485 Port Connection

Temtop PMD 331 Air Quality Monitor with Particle Counting 7 Channels, USB/RS485 Port Connection 7-channel Particle Size Monitoring The most characteristic and portable cost-effective particle counter. 7-channel detection: 0.3μm, 0.5μm, 0.7μm, 1.0μm, 2.5μm, 5.0μm and 10μm. All-metal precision optical-mechanical structure is adopted to make the anti-interference performance stronger; Compliant with ISO 21501-4 standard. Applications: Measure filter efficiency Monitor industrial cleanrooms Pre-screen indoor air quality and confidently work with IAQ specialists Locate particle sources for remediation Report the effectiveness of repairs to customers Drive additional business by demonstrating the need for maintenance and repair