OPC-N3 is a three-generation product upgraded on the basis of OPC-N1 and OPC-N2. Under the condition that the appearance and size are consistent with the OPC-N2, the measuring range is increased to 0.38-40um, and the number of channels is increased from 16 to 24. At the same time, onboard temperature and humidity sensors are added, which reduces the power consumption in standby mode and can detect PM1, PM2.5 and PM10.

Particle detector OPC-N3 performance parameters:

Particle size range Spherical isoproduct size (um)(based on 1.5RI,1.65S) 0.38-40
Number of size classification software trees 24
Total flow rate (typical) l/min 1.2
Max particle count rate particle/second 10,000
Supply voltage VDC 4.8-5.2

Measurement mode mA (typical) 175
Standby mode mA (typical) 50
Digital interface/connection SPI (real-time data and communication)
Micro USB (firmware update and standalone mode)
Data storage Micro-SD(.CSV format)(GB) 16

OPC-N3 Advantages and Applications of Particulate Matter Detector
1. Designed for large particles up to 2,000 µg/m3 for heavily polluted environment

2, expanded to 40um range to help identify pollen types

3, 24 channels, size form increases have more information to identify the source of pollution