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LY-2050 Ambient Air Sampler Model QQ is a multi-functional intelligent monitoring instrument integrating particulate sampling, gaseous pollutant sampling and VOCs solid-phase adsorption sampling. It uses filter membrane gravimetric method to collect TSP, PM10 and optional PM2.5, and solution absorption method to sample SO₂, NOx and other gaseous pollutants in ambient and indoor air. It is widely used for routine and emergency monitoring of particulate matter, gaseous substances and aerosols by environmental protection, public health, safety supervision, military, scientific research and education institutions.
This instrument supports five independent gas paths for simultaneous sampling. Each channel has individual flow setting and independent constant‑flow control to meet multi‑index synchronous sampling requirements.
It works as both a four‑channel ambient air sampler and a particulate matter sampler for TSP, PM10, and optional PM2.5, realizing integrated sampling of particles and gases.
It supports solid‑phase adsorption sampling of volatile organic compounds (VOCs) in ambient air, compatible with standard adsorption tubes and compliant with HJ series standard methods.
Equipped with high‑precision corrosion‑resistant electronic flow meters for automatic flow control. The built‑in corrosion‑resistant, ultra‑low noise, maintenance‑free core pump supports long‑term continuous operation with overload protection.
Built‑in lithium battery supports AC + DC dual power supply, suitable for both fixed laboratory use and field emergency sampling.
Large‑capacity memory enables data storage, review, export, and printing. It measures atmospheric pressure and ambient temperature in real time, with self‑diagnosis and fault indication for easy operation and maintenance.
Compliance & Standards
LY-2050 Ambient Air Sampler is designed and manufactured in full compliance with national and industrial standards for ambient air monitoring, indoor air quality testing, and particulate matter measurement.
GB/T 18883-2022 Indoor Air Quality Standard
GB/T 39193-2020 Ambient Air—Determination of Particulate Matter Mass Concentration—Gravimetric Method
GB 50325-2020 Standard for Indoor Environmental Pollution Control of Civil Building Engineering
HJ 93-2013, HJ/T 374-2007, HJ/T 375-2007
HJ 618-2011, HJ 644-2013, HJ 645-2013, HJ 683-2014, HJ 1263-2022
JJG 943-2011, JJG 956-2013
Main Parameters | Range |
Particulate Matter Sampling Flow Rate | Maximum no-load flow rate of 150 L/min, operating point flow rate customizable. |
Ambient Air Sampling Flow Rate | Standard configuration (0~1.0) L/min. Channels C/D customizable within (10~200)mL/min. |
Sampling Duration | Arbitrarily set within 99 hours 59 minutes |
Inlet Temperature | （-55~125）℃ |
Inlet Pressure | （-45~0）kPa |
Atmospheric Pressure | （50~130）kPa |
Environmental protection bureaus and monitoring stations
Indoor air quality testing for civil buildings and offices
Industrial pollution source and emergency accident monitoring
Occupational health and workplace safety detection
Universities, research institutes, and laboratory analysis
Military, emergency response, and field air sampling
All‑in‑one sampling: Covers particles, gases, and VOCs in one instrument.
Standard‑compliant: Fully meets national and industrial specifications for authoritative data.
Stable & durable: Long‑life pump, stable constant flow, suitable for continuous field use.
Intelligent & easy: Auto flow control, data management, self‑diagnosis, and dual power supply.
Widely compatible: Adaptable to various sampling tubes, membranes, and adsorption tubes.
Yes, each of the five gas paths supports independent flow setting and constant‑flow control.
Yes, built‑in lithium battery supports AC/DC dual power supply for field use.
PM2.5 is optional; the standard configuration supports TSP and PM10 sampling.
It supports real‑time sampling data storage, query, export, and printing.
