Service hotline:400-728-7728
Mobile phone:181-5178-9348
Mailbox:popularize@kqet.com.cn
Address: 2nd Floor,Building E,No.60 Chuangye Street, Suzhou High tech Zone
The KQET-5128CLJ is an inline laser particle counter equipped with a built-in pump, specially designed for full-range particle counting in controlled clean environments.
Based on the light scattering principle and optoelectronic sensing technology, this instrument accurately detects and counts airborne particles across a wide size spectrum. It features an extended particle size detection range, covering particles from 0.5 μm up to 50 μm. Widely applicable to electronics, lithium batteries, automotive, aerospace, precision machining, food and other industries where large particles exist in clean areas, it addresses both conventional cleanliness monitoring and the long-standing challenge of large particle detection at production process points.
For harsh operating conditions with high particle concentration and heavy contamination, the unit adopts an innovative protective air jacket technology. A coaxial sheath of clean gas surrounds the sampled airflow, isolating it from the optical cavity. This effectively prevents dust accumulation, condensation and corrosion on optical components, delivering long-term stable and accurate measurement while extending the service life of the equipment.

Wide-Range Real-Time Particle Monitoring
0.5, 1, 5, 10, 25, 50 μm
Smart Touchscreen – Easy On‑Site Maintenance
4.3″ touchscreen: address setting, local/online use, easy replacement
Stable, Durable, Long-Life Design
10-year laser source & 3-year vacuum source, low vibration & noise, 24/7 operation
Multi-Level Alarms & Safety Protection
1 CFM flow monitoring & self-adjustment; >85 dB alarm; over-limit alert,Protective gas sheath prevents contamination & corrosion for stable long-term measurement
Multi-Protocol Communication & Strong Expandability
RS485/TCP/WiFi/4G, customizable protocol, local data storage, external sensors
Address: 2nd Floor, Building E, No.60 Chuangye Street, Suzhou High tech Zone
Phone: 18151789348
Fax: 400-728-7728
Website: www.kqet.com. cn
Email: popularize@kqet.com.cn
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