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

Multi-Protocol Communication & Strong Expandability  

RS485/TCP/WiFi/4G, customizable protocol, local data storage, external sensors

1、Equipped with high-precision sensors for accurate counting and superior performance.

2、Integrated structure for easy installation.

3、4.3-inch intelligent touch screen with fast response, enabling man-machine interaction and real-time data display.

4、High sampling flow rate of 28.3L/min, which improves both sampling accuracy and efficiency.

5、Built-in vacuum source with a 3-year service life, featuring low vibration, low noise and stable operation to guarantee counting accuracy.

6、Capable of 7×24 hours uninterrupted continuous operation with high reliability.

7、Professional industrial design with complete functional interfaces and elegant appearance.

8、Supports local start/stop independently, usable as a standalone device or online monitoring equipment.

9、Communication address can be set via the touch screen for convenient on-site replacement.

10、Calibration due reminder to prompt users for metering and calibration.

11、On-screen alarm function for abnormal data. Built-in flow sensor realizes real-time flow monitoring and automatic flow adjustment to maintain stable flow and accurate counting.

12、Adopts imported semiconductor laser diode with a 10-year service life (annual calibration required).

13、Supports RS485 Modbus RTU and Ethernet Modbus TCP protocols; customized communication protocols are available.

14、Intelligent IoT function enables remote start and stop control.

15、Local data storage lasts for more than one month to prevent data loss.

16、Real-time counting for particles of 0.5μm, 1.0μm, 5.0μm, 10.0μm, 25.0μm and 50.0μm.

17、Built-in audible and visual alarm with sound volume over 85dB.

18、Optional wireless antenna for wireless data transmission upgrade.

19、Expandable with analog interface to connect external sensors (optional), such as temperature & humidity sensors, wind speed sensors and differential pressure sensors.

Model：KQET-5128CLT

Particle Size Range：0.5μm ~ 50.0μm

Standard Particle Size Channels：0.5μm, 1.0μm, 5.0μm, 10.0μm, 25.0μm, 50.0μm (Customizable)

Maximum Sampling Concentration：35,000 particles/L; Over-concentration protection with automatic self-cleaning prompt

Repeatability Error：±5%FS

Self-cleaning Time：≤5 min

Sampling Flow Rate：28.3L/min ±5%; Real-time monitoring and over-limit alarm

Sampling Period：1 - 9999 seconds (adjustable)

Continuous Operation：24-hour uninterrupted stable operation

Laser Light Source：Imported semiconductor laser diode, 10-year service life

Vacuum Source：Built-in vacuum source, 3-year service life

Display：4.3-inch touch screen

Power Supply：DC24V/4A

Data Storage Capacity：20,000 records

Communication Mode：RS485 / TCP standard communication

Calibration Standard：ISO21501-4

Housing Material：Stainless Steel

Dimensions (mm)：190*140*96