I. Product Name: LUFTMY Laser Dust PM2.5 Sensor Module

II. Product Model: LD13

The Laser PM2.5 Sensor Module LD13 is a high-precision particulate matter concentration sensor based on Laser Mie Scattering Theory. It can be embedded in various instruments or environmental improvement equipment related to suspended particulate matter concentration in the air, such as smoke alarms, air purifiers, and air conditioners with purification functions. It provides timely and accurate concentration data and can continuously collect and calculate the number of suspended particles of different sizes in the air per unit volume to determine the particulate matter concentration distribution.

III. Application Scope of Particulate Matter Dust Sensor Module LD13:

Smoke alarms, air purifiers, fresh air systems, air conditioners with purification functions, PM2.5 detectors, range hoods, specialized PM2.5 sensors, air detectors, wearable devices, etc.

IV. Features of Particulate Matter Dust Sensor Module LD13:

1. High measurement accuracy;

2. Real-time response time less than 1 second;

3. Long service life, Mean Time Between Failures (MTBF) ≥ 5 years;

4. Strong anti-interference capability;

5. High consistency;

6. Wide application range, can simultaneously output PM0.3, PM0.5, PM1.0, PM2.5, and PM10.

7. Thin and light design, suitable for PM2.5 detectors, wearable devices, air purifiers, fresh air systems, etc.

V. Technical Specifications of Particulate Matter Dust Sensor LD13:

Detection Principle: Mie spherical scattering principle

Dust sensor detection particle size range: 0.1~10μm

PM2.5 Output consistency: >100μg/m³ maximum allowable error ±8%, <100μg/m³ maximum allowable error ±10μg/m³

Dust sensor working conditions: -10~70°C, 0~95% RH

Storage conditions: -40~80°C, 0~95% RH (non-condensing)

Dust sensor working voltage: DC 5.0V±5%

Dust sensor working current: <120mA

Sensor standby current: <0.5mA

Output signal: UART, PWM

Particulate matter dust sensor dimensions: W59*H45*D16 (mm)

VI. Working Principle and Interface Definition of Particulate Matter Dust Sensor LD13:

Working Principle: The laser sensor uses laser to irradiate suspended particles in the air to produce light scattering. A photoelectric detector collects the scattered light intensity within a certain angular range and linearly converts the resulting scattered light intensity into a voltage, which is then sent to a data processing system. The data processing system processes the data according to a pre-programmed procedure based on Mie scattering theory to determine the equivalent particle size and the number of particles of different sizes per unit volume.

Interface Definition:

Guangzhou LUFTMY focuses on the research, production, and sales of optical particulate matter sensor technology. It has been widely praised in the industry for multiple performance indicators such as measurement accuracy, stability, consistency error, and anti-interference.