High-Precision Airborne Particle Detection with Comprehensive Environmental Monitoring

The UNI-T UT337B is a professional-grade laser particle counter offering synchronized six-channel detection of airborne particles from 0.3μm to 10.0μm. Engineered for precise environmental monitoring applications, its intuitive 3.5" color display provides clear visualization of particle distribution data in real-time.

With advanced features including integrated temperature and humidity sensors, WiFi/USB connectivity, built-in camera, and compatibility with industry-standard ISO/EU-GMP classifications, this versatile instrument delivers the reliability needed by environmental engineers, cleanroom technicians, HVAC specialists, and quality control professionals in pharmaceutical, healthcare, electronics manufacturing, and indoor air quality applications.

Key Features

• Six-Channel Particle Detection: Simultaneous measurement of 0.3μm, 0.5μm, 1.0μm, 3.0μm, 5.0μm, and 10.0μm particles
• High Flow Sampling Rate: 2.83L/min (0.1CFM) for rapid and accurate air quality assessment
• 3.5" Color LED Display: Clear, high-visibility screen for intuitive data monitoring
• Integrated Environmental Sensors: Measures temperature (-10°C to 50°C), humidity (0.1% to 99.9%), and dew point
• Dual Connectivity: WiFi for wireless monitoring and Type-C USB for direct data transfer
• Built-in Camera: Captures environmental context photos linked to measurement data
• ISO/EU-GMP Classifications: Direct display of compliance with international cleanroom standards
• Extensive Data Storage: Internal memory for 10,000 measurement records
• High Reliability Sampling: Meets ISO 21501-4:2018 standards with particle distribution error ≤±30%
• Multiple Counting Modes: Cumulative and differential concentration/counting options for versatile analysis

Professional-Grade Precision for Demanding Applications

The UNI-T UT337B delivers exceptional measurement accuracy with its advanced laser scattering technology, providing reliable detection across all six particle size channels. With counting efficiency of ≥50% at 0.3μm and 100% at 0.5μm, it offers laboratory-grade precision in a portable instrument. The high-flow sampling system ensures rapid data collection at 2.83L/min (0.1CFM), making it ideal for real-time environmental monitoring applications where quick assessment is essential.

The specialized ISO and GMP measurement modes provide direct compliance evaluation with international standards ISO 14644-1:2015 (Classes ISO 4-9) and EUGMP Annex 1 (Grades A-D), eliminating the need for manual calculations and ensuring consistent classification across different environments. This capability is essential for cleanroom validation, pharmaceutical manufacturing, and other regulated industries where particle monitoring documentation is mandatory.

Comprehensive Monitoring Capabilities

The UT337B combines essential particle counting with integrated environmental monitoring to deliver complete diagnostic capabilities. Beyond standard particle concentration measurements, it offers:

• Temperature monitoring from -10°C to 50°C with ±0.5°C accuracy
• Relative humidity measurement from 0.1% to 99.9% with ±5.0% accuracy
• Dew point calculation from 0°C to 50°C with ±0.5°C accuracy
• Customizable sampling intervals from 5 seconds to 6 hours
• Programmable sampling delays from 5 to 240 seconds
• Maximum particle concentration measurement up to 2,000,000/L
• LED and audio alerts when thresholds are exceeded
• Multiple data viewing options including tabular and trend analysis

The optional integrated camera enables technicians to document environmental context by capturing images that are automatically linked to measurement data, providing valuable visual reference for site investigations, troubleshooting, and compliance documentation.

Smart Connectivity and Data Management

The integrated WiFi connectivity pairs with UNI-T's mobile application, allowing technicians to:

• Monitor measurements remotely in real-time
• Generate comprehensive sampling reports in PDF and CSV formats
• Document particle concentration trends over time
• Export data with synchronized temperature and humidity values
• Share findings with team members instantly

This connectivity transforms the UT337B from a simple measurement tool into a complete environmental monitoring system, enabling professionals to document conditions, analyze trends, and maintain comprehensive records. The Type-C USB interface provides an alternative direct connection for data transfer and power.

Professional Applications

Cleanroom Validation

Cleanroom certification specialists rely on the UT337B's precision and standards compliance for:

• ISO 14644-1 classification verification
• EUGMP Annex 1 pharmaceutical compliance testing
• Routine monitoring and documentation of critical environments
• HEPA filter efficiency testing
• Contamination source identification

Healthcare Facilities

Medical environmental specialists leverage the UT337B's comprehensive monitoring for:

• Operating room air quality validation
• Isolation room pressure differential verification
• Sterile compounding area certification
• Infection control environmental assessment
• HVAC system performance verification

Electronics Manufacturing

Production quality control personnel depend on the UT337B's sensitivity for:

• Semiconductor fabrication environment monitoring
• Hard drive assembly area certification
• Electronics assembly workspace validation
• Research and development lab qualification
• Equipment enclosure environmental assessment

Indoor Air Quality Assessment

Environmental consultants utilize the UT337B for:

• Building occupant health investigations
• HVAC system performance evaluation
• Post-remediation verification
• Airborne contaminant source identification
• Environmental compliance documentation

Additional Features

• Display Type: 3.5" Color LED screen
• Counting Modes: Cumulative; Differential concentration/counting
• Sampling Delay: 5 to 240 seconds
• Time Interval: 5 to 240 seconds
• Purge Time: ≤10min (Continuous 0 for 2 times in 10 minutes; 95% reliability)
• Built-in Camera: For environmental documentation
• Storage Environment: -30°C to 50°C, 0% to 95% (Non-condensation)
• Multiple Languages: EN, FR, DE, IT, ES, SV, PL, CS

Package Contents

• UNI-T UT337B Laser Particle Counter
• Type-C Cable
• Hand Strap
• Purge Filter
• Sampling Tube
• User Manual
• Calibration Certificate
• Carrying Case