09,22,2026 16 views
LFG303 PM2.5/PM10 indoor dust transmission/controller is a high-performance device designed specifically for indoor air quality monitoring, suitable for various indoor environments such as commercial complexes, smart buildings, hospitals, schools, etc. This product combines advanced laser sensing technology with user-friendly functional design, providing accurate and reliable dust concentration monitoring and control solutions.
Product Features
-Accurate monitoring: Using a laser dust sensor, it can detect particulate matter within the range of 0.3-10 μ m, including PM2.5 and PM10, with a resolution of up to 1 μ g/m ³.
-Multiple output modes: Supports 4-20mA, 0-10V, and RS485/Modbus output to meet different system integration requirements.
-High reliability: equipped with comprehensive overvoltage and reverse protection functions, with an average time of not less than 3 years, suitable for wide voltage power supply (15-36VDC/24VAC ± 20%).
-Independent control and alarm: optional relay output and buzzer, combined with display screen and buttons, achieve flexible alarm and control functions.
-Intuitive display: The six color LED indicator lights reflect the environmental quality in real time, from "good" to "harmful" at a glance.
-Easy installation: The shell is lightweight and beautiful, compatible with standard 86 box installation, suitable for wall or embedded box installation.
Technical Specifications
Sensor Type * *: Laser Dust Sensor
量程： PM2.5：0～500μg/m³，PM10：0～600μg/m³
Accuracy: PM2.5 is ± 10 μ g/m ³ within the range of 0-100 μ g/m ³, and ± 10% FS within the range of 100-500 μ g/m ³
Response time: Single response<15 seconds, comprehensive response<105 seconds
Working environment: 0-50 ℃, 0-95% RH (non condensing)
Protection level: IP30
Shell material: PC
Selection and Configuration
Users can flexibly choose according to their actual needs:
-Output types * *: IV0 (PM2.5 output), IV1 (PM10 output) RS（RS485/Modbus）
Display and buttons * *: D (with display button), N (without display button)
Relay and buzzer * *: R (1 relay+buzzer), S (1 relay), N (none)
Example model: LFG303- IV0- D - R, indicating a configuration with PM2.5 output, display button, relay+buzzer.
Installation and wiring
The LFG303 has a simple design, and the installation steps include opening the cover, wiring, fixing, and closing the cover. Supports wall expansion screw installation or 86 box embedded installation, with flexible adjustment of wiring methods based on output type (current/voltage/RS485) and relay configuration.
LFG303 has become an ideal choice for indoor air quality monitoring due to its high precision, versatility, and ease of installation. Whether used for environmental monitoring, alarm control, or system integration, it can provide stable, intuitive, and reliable performance.
