UT337B 6Ch Particle Counter

The UT337B is a six-channel laser particle counter for cleanroom and air-quality work. It counts airborne particles at 0.3, 0.5, 1.0, 3.0, 5.0, and 10.0 µm and classifies cleanliness to ISO and EU-GMP standards, with simultaneous temperature, humidity, and dew-point readings.

A 2.83 L/min (0.1 CFM) sampling flow, cumulative and differential counting modes, configurable sampling time and intervals, storage for 10,000 records, and Wi-Fi and USB-C transfer cover routine monitoring and qualification. Counting efficiency is 50% at 0.3 µm and 100% at 0.5 µm, with repeatability within 10%.

It suits cleanroom qualification and monitoring, HVAC and filtration validation, and indoor air-quality assessment.

Key Features

• Channels=0.3μm, 0.5μm, 1.0μm, 3.0μm, 5.0μm, 10.0μm
• Sampling Flow=2.83L/min (±5%), 0.1CFM
• Counting Efficiency=0.3μm ≥ 50%; 0.5μm: 100%
• Max Sampling Concentration=2,000,000/L

Specifications