Reasonable structure design, compact size, easy installation. Particle size channel: 0.3,0.5,0.7,1.0,3.0,5.0,10.0,25.0 (μm) Sampling flow rate: 1CFM (28.3LPM) Three kinds of status indicator guide: RS485 (modbus), 4-20mA, WIFI, LORA, TCPIP and other signal output methods can be selected. Using foreign original laser diode and vacuum pump, long service life. 2.4 inch OLED display, readings are intuitive and clear. 316 stainless steel case can be ordered.