This Digital Laser Particle Counter is a bench-top laser airborne particle counting instrument designed for cleanroom certification and indoor particle concentration validation. Unlike handheld portable particle counters with low flow rates, this model uses a standard 28.3L/min (1 CFM) sampling flow, the industry standard for cleanroom classification.
Specification
| Light Source |
Type: Semiconductor Laser |
| Service Life: >35,000 hours |
| Sampling Flow Rate |
Standard Flow: 2.83 L/min (0.1 ft³/min) |
| Accuracy: ±5% at 2.83 L/min |
| Particle Counting |
Particle Size Channels: 0.3μm, 0.5μm, 1.0μm, 2.5μm, 5.0μm, 10μm |
| Max Count Capacity: 35,000 particles/L (for particles ≥0.5μm) |
| Display |
Screen: 3.5-inch smart touch LCD |
| Displayed Information: Real-time concentration bar chart, equivalent concentration calculation, real-time airflow, actual cleanliness class |
| Additional Info: Time, date, measured values, temperature & humidity, room ID, sampling point, sampling count, battery level, device status |
| Alarm Settings |
Cleanliness class alarm configuration |
| Data Processing |
Storage: Auto-save sampling data, built-in 4GB usable storage |
| Export: Data export via USB flash drive; print sampling data with Bluetooth printer |
| Calculation: 95% UCL calculation; directly display particle counts (particles, particles/m³, particles/ft³) |
| Battery |
Type: Lithium-ion battery, 3.7V, 10000mAh |
| Runtime: ≥8 hours |
| Operation & Connectivity |
Interfaces: Dual high-speed USB ports for USB drive and PC connection |
| Network: Built-in Wi-Fi and Bluetooth for remote data transmission |
| Printer: Separate Bluetooth printer for real-time data printing |
| Operating Environment |
Temperature: 0°C ~ 40°C |
| Humidity: 10% ~ 75%RH |
| Sampled Gas: Must be free of corrosive gases such as acids and alkalis |
| Storage Environment |
Temperature: 0°C ~ 45°C |
| Humidity: 0% ~ 90%RH |
Features


- 6 High-Precision Particle Size Channels: This laser particle counter detects airborne particles at 0.3, 0.5, 1.0, 3.0, 5.0, 10.0 μm. Self-cleaning time ≤10 minutes for consistent air particle sampling in cleanroom monitoring.
- Standard 28.3 L/min (1 CFM) Sampling Flow: Industry-standard flow rate for cleanroom air testing. Supports adjustable sampling period, delay time and measurement interval for custom test workflows.
- Automatic Cleanroom Grade Classification & Alarm: Automatically rates cleanliness per FED 209E (Class100~Class300,000) and ISO14644-1 (ISO 5~9). Alerts users when particle concentration exceeds preset thresholds.
- Complete Data Management & Audit Trail: Traceable records for quality audits. Built-in thermal printer generates on-site reports; Wi-Fi and Bluetooth enable wireless data upload to cloud for air particle testing.
- 7-inch Touchscreen & Android Operating System: Portable particle counter with a 7-inch color touchscreen and intuitive Android OS for easy operation and clear real-time particle data display.
- AC/DC Dual Power Supply: Rechargeable lithium battery delivers up to 8 hours runtime. AC/DC power options plus retractable stand support stable sampling for lab and on-site inspections.
Dimension

Applications
Built for quality control technicians, it is widely deployed in pharmaceutical, electronic manufacturing, food processing, precision machining, aerospace and laboratory environments to verify airborne particulate contamination and document cleanroom performance.

Q&A
Q1: How to use the Digital Laser particle counter?
A: When performing cleanroom validation, this laser particle counter draws air samples continuously at a fixed 28.3L/min flow rate. Its imported laser diode detects particles and sorts readings across six size channels. After sampling completes, the unit calculates particle concentration, determines cleanroom classification and records full audit trails. You can print reports directly on-device or send data wirelessly via Wi-Fi & Bluetooth to a cloud platform.
Q2: Can this particle counter measure airborne particles in high humidity environments?
A: We recommend operating it under relative humidity ≤70%, non-condensing conditions. Condensed moisture on the laser sensor will distort readings and cause permanent sensor damage. Avoid direct use in foggy, steamy or wet locations.
Q3: How often should I calibrate this laser particle counter?
A: Annual factory calibration is suggested for regular cleanroom monitoring. If the unit suffers heavy shock, obvious reading drift, or you use it for official audit reports, perform calibration immediately.
Q4: Is this device capable of storing test data and exporting records?
A: Yes. It can save batches of particle test data with timestamp. You may export records to a computer for report generation, which is convenient for cleanroom audit documentation.
Q5: What particle sizes can this counter detect?
A: It supports 6 independent particle size channels to count particles of different diameters simultaneously, to help you judge cleanroom cleanliness level quickly.