2025B 2025B Portable PM2.5/PM10 Online Monitoring Instrument
Overview
Ambient air monitoring serves two distinct purposes that require different instruments. Reference determination by gravimetric sampling sets the baseline a network must be traceable to. Real-time optical measurement gives the resolution and coverage that networks, urban projects and industrial perimeters depend on operationally. Kesen supplies both, plus the meteorological and noise instruments a complete station requires.
Key specifications — 2025B
| Parameter | Specification |
|---|---|
| Model | 2025B |
| Product type | 手持式PM2.5/PM10在线直读监测仪 |
| PM2.5 (0~1000) ug/m3 | PM2.5 (0~1000) ug/m3 |
| PM10 (0~1000) ug/m3 | PM10 (0~1000) ug/m3 |
| also PM1.0 / TSP | also PM1.0 / TSP |
| Temp (-20~70)C | Temp (-20~70)C |
| Humidity (0~100)%RH | Humidity (0~100)%RH |
| USB | USB |
| Built-in thermal printer | Built-in thermal printer |
| Buzzer alarm | Buzzer alarm |
| ~0.7-0.8 kg | ~0.7-0.8 kg |
| 240x103x60 mm | 240x103x60 mm |
| <3 W | <3 W |
| Internal Li-ion 7.4V | Internal Li-ion 7.4V |
| Optional PID, HCHO, CO, CO2, CH4, O3, isopentane modules | Optional PID, HCHO, CO, CO2, CH4, O3, isopentane modules |
Standards
WS/T 206-2001 · JJG 846-1993 · JJG 846-2015 · LD 98-1996
Applications
Municipal air quality networks · urban background and traffic stations · industrial perimeter monitoring · construction dust enforcement · indoor air quality · occupational dust exposure · research and institutional programmes · airport and port environmental monitoring
Configuration
Measurement range, sampling flow, probe type, gas configuration, output protocol and data storage are specified at order. State your requirement and we will confirm the configuration in the quotation.
Frequently asked questions
Should I specify optical or gravimetric PM measurement?
Gravimetric sampling by filter weighing remains the reference method against which optical instruments are evaluated. Optical monitors give continuous data, a much lower cost per point and the temporal resolution networks need, but they measure an equivalent concentration that must be correlated with the reference. If your work is regulatory and defensible, you need gravimetric reference data behind the optical data. If your work is operational, screening or trending, optical alone may suffice.
What data quality indicators matter when comparing monitors?
Three. Correlation with the reference method against the stated requirement. Agreement of the measurement range with the reference. And data completeness as a percentage of expected samples. A monitor that states these three can be compared objectively. One that publishes only a range figure cannot.
Can these instruments feed a municipal air quality network?
Model 2092 supports the HJ/T 212-2017 data transmission protocol and is used with HJ 633-2012 AQI calculation and HJ 663-2013 assessment. The 2193 noise monitor also supports HJ 212-2017 and HJ 660-2013. Where the network uses a different protocol, state it in the enquiry — most models can be configured.
Request a quotation
Send the application, the parameter or gas, the measurement range, the output protocol required and your target delivery date. An engineer will reply with a configuration recommendation and a price — normally within one working day.
Model: 2025B | Required options: ____________ | Output protocol: ____________ | Target delivery: ____________