Cubic Sensor and Instrument Co.,Ltd.

Handheld Particle Counter OPC-6511DS

Cubic handheld particle counter OPC-6511DS adopts the principle of light scattering with a built-in unique laser diode, consistent RPM fan, and well-designed ultrasonic flow sensor. The handheld air particle counter is compliant with lSO 21501-4 requirements. Equipped with a high-capacity lithium battery and a user-friendly touch screen, the device displays monitoring data in real time, enabling efficient spot-checking across multiple sites.

Contact Us >
Features Specification

Features of 28.3LPM Handheld Particle Counter OPC-6511DS

  • 5-channel outputs 0.3μm, 0.5μm,1.0μm, 5.0μm,10μm in pcs/28.3LPM or pcs/m³.

  • Sound and light alarm once particle quantity exceeds the set threshold.

  • Calibration coefficient correction available against standard equipment.

  • Real-time display ISO14844-1 grade level.

  • Built-in rechargeable Li-battery.


Specification of 28.3LPM Handheld Particle Counter OPC-6511ds

Working PrincipleLight scattering
Measurement Range0~1,000,000 pcs/28.3L
Output Channels>0.3μm, >0.5μm, >1.0μm, >5.0μm, >10μm
Count Efficiency

50%@≥0.3μm, 100%@≥0.5μm;

Condition: 25±2℃, 50±10%RH

Data Refresh Time1 second
Working Condition0°C ~ 45°C, 0 ~ 95%RH (Non-condensing)
Operating VoltageDC 24V±15%
Average Operating Current≤3A
Battery Standby Time
>5h (Work 2 minutes and sleep 28 minutes)
CommunicationRS485 Modbus RTU, RJ45 MQTT
Sampling flow rate28.3L/min (1.0 CFM)
External Sampling Hose

Inner diameter: ф10mm 

Length: ≤3m

Work ModeAdjustable (Default: work 2 minutes and sleep 28 minutes)
Display7-inch color touch screen


Contact Us to Explore More Innovative Building Automation and HVAC Control Solutions!
How May We Help?
Contact Us to Explore More Innovative Building Automation and HVAC Control Solutions!