YJJ PMST003 Laser PM2.5 PM10 Dust Sensor UART Digital Particulate Matter Detection Module

Product Description:

YJJ PMST003 Laser PM2.5 PM10 Dust Sensor UART Digital Particulate Matter Detection Module

Features:

I. Product Introduction

PMST003 Ultra-thin Laser Scattering Dust Sensor, with a total thickness of only 6.4mm, featuring a six-sided fully enclosed metal shielding shell; it outputs PM1.0, PM2.5, PM10 mass concentrations and multi-size particle counts via TTL-UART serial port. This product is designed for extremely small volume, excellent anti-electromagnetic interference, and is suitable for compact portable and wearable air detection devices.

II. Complete Technical Parameters

Detection Principle: Laser Mie Light Scattering

Detection Particle Size Ranges: 0.3 - 1.0μm, 1.0 - 2.5μm, 2.5 - 10μm

Particle Counting Efficiency: 50% @ 0.3μm; 98% ≥ 0.5μm

PM2.5 Standard Range: 0 - 500μg/m³

PM2.5 Overload Range: 0 - 1000μg/m³

Concentration Resolution: 1μg/m³

Measurement Accuracy: 0 - 100μg/m³ ± 10μg/m³; 100 - 1000μg/m³ ± 10%FS

Single Sampling Response: < 1s; Whole Machine Stable Response ≤ 10s

Single Sampling Air Volume: 0.1L

Standard Power Supply: DC 4.5 - 5.5V, typical 5V

Working Peak Current: ≤ 100mA

Sleep Standby Current: ≤ 2mA

Communication Interface: TTL-UART, baud rate 9600, 3.3V level, supports active upload / passive inquiry mode

Operating Temperature: -10℃ ~ +60℃

Storage Temperature: -40℃ ~ +80℃

Operating Humidity: 0 - 95% RH, no condensation allowed

Overall Size: 38 × 35 × 6.4mm (Ultra-thin 6.4mm)

Mean Time Between Failures: ≥ 20,000 hours

Shell Structure: Fully metal six-sided shielding, strong resistance to oil smoke and electromagnetic interference

III. Pin Definitions (10-pin connector)

VCC: +5V Power Supply

GND: Ground

SET: Working Mode; High level for continuous sampling, low level for sleep and power saving

RXD: Sensor Serial Port Reception (3.3V)

TXD: Sensor Serial Port Transmission (3.3V)

RESET: Low level hardware reset pin

7 - 10. NC Spacing Pins

IV. Core Product Advantages

6.4mm Ultra-thin Body, suitable for narrow internal cavities and portable wearable devices

Closed metal shielding shell, stable detection in complex electromagnetic environments

Supports sleep mode for low power consumption, compatible with lithium battery-powered equipment

Outputs both raw particle count and calibrated PM concentration data

Factory calibration consistency is high, no need for secondary calibration for large quantities of instruments

V. Industry Application Purposes

Ultra-thin handheld air detector, wearable environmental detection module

Miniature vehicle air purifier, small desktop air detection equipment

Smart home risk control controller, micro ventilation equipment

Power supply unit, electrical control cabinet, precision instrument chassis internal dust monitoring

Ultra-thin IoT environmental monitoring terminal, wearable device, bracelet air detection module

Specifications: