SKU: SENS-0290
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Winsen ZH07 Laser Dust Sensor Module - UART & PWM Output

₹1,399.00 (Inclusive of all taxes)
Out of Stock

The Winsen ZH07 is a compact laser dust sensor module designed for integration into air quality monitoring systems, portable instruments, and smart home devices. It provides real-time particulate matter (PM) concentration data via UART or PWM output and is compatible with 5V microcontrollers like Arduino and Raspberry Pi.

Features

  • Laser scattering (Mie principle) detection for particles from 0.3 to 10 µm.
  • Dual output options: UART TTL (3.3V level) and PWM (3.3V level) for flexible system integration.
  • Low power consumption with <120mA operating current and <20mA dormancy current.
  • Fast response time with T90 <30 seconds and a 1-second detection interval.
  • Compact and robust design measuring 48 x 40 x 12.5 mm for easy embedding.

Out of stock

Description

The Winsen ZH07 Laser Dust Sensor Module utilizes advanced Mie scattering laser technology to accurately detect and quantify airborne particulate matter (PM) concentrations. Its integrated laser diode and photodetector system, coupled with proprietary calibration algorithms, ensure high consistency and stable data output across varying environmental conditions.

Engineered for reliability, the module operates within a -10 to 60°C temperature range and 0-80% RH (non-condensing) environment. Its 3.3V logic-level UART and PWM outputs provide direct compatibility with a wide range of microcontrollers, data loggers, and industrial PLCs, facilitating seamless integration into air purification, HVAC monitoring, and environmental sensing systems.

Key Features

  • High-precision laser scattering detection with a minimum resolution of 0.3 µm Particle diameter.
  • Dual-mode output interface: configurable UART serial communication and pulse-width modulation (PWM).
  • Optimized low-power design with a dormancy current under 20mA for battery-operated applications.
  • Robust environmental performance rated for operation from -10°C to 60°C.
  • Compact form factor (48x40x12.5mm) and lightweight (<30g) construction for space-constrained designs.
  • Fast preheat time of approximately 30 seconds for rapid system readiness.
  • Excellent sensor-to-sensor consistency ensured through professional factory calibration.

Applications

  • Embedded air quality monitoring in HVAC ductwork and ventilation control systems.
  • Core sensing component for commercial and residential air purifiers.
  • Portable environmental monitoring instruments and data loggers.
  • Smart home and building automation systems for indoor air quality assessment.
  • Industrial workplace safety monitors for particulate exposure compliance.

Technical Specifications

Model NumberZH07
Detection PrincipleLaser Scattering (Mie)
Particle Detection Range0.3 - 10 µm
Detection Interval1 second
Output InterfacesUART TTL (3.3V level, default), PWM (3.3V level, default)
Operating Voltage4.8V - 5.5V DC
Operating Current< 120 mA
Dormancy Current< 20 mA
Response Time (T90)< 30 seconds
Preheat Time~30 seconds
Operating Temperature-10°C to 60°C
Operating Humidity0% to 80% RH (Non-Condensing)
Storage Temperature-30°C to 70°C
Dimensions (L x W x H)48 x 40 x 12.5 mm
Weight< 30 g

Frequently Asked Questions

What is the output interface of the ZH07 sensor and what logic level does it use?

The ZH07 provides two configurable output options: a UART TTL serial interface and a Pulse Width Modulation (PWM) signal. Both outputs operate at a 3.3V logic level by default, making them directly compatible with most modern microcontrollers like ESP32, STM32, and Raspberry Pi without requiring level shifting.

What is the minimum Particle size the ZH07 can detect and what is its operating voltage range?

The sensor has a minimum detection resolution of 0.3 micrometers (µm), covering the PM2.5 and PM10 size ranges up to 10 µm. It requires a DC supply voltage between 4.8V and 5.5V, with a typical operating current of less than 120mA, making it suitable for 5V-based systems like Arduino Uno.

How do I integrate the ZH07 with an Arduino or Raspberry Pi for air quality monitoring?

For UART communication, connect the module's TX/RX pins to your controller's serial pins (e.g., SoftwareSerial on Arduino). For PWM, connect the output pin to a digital input capable of measuring pulse width. Ensure you provide a stable 5V power supply and respect the 3.3V logic level on the data lines. A 30-second preheat period is required after power-on for stable readings.

What are the environmental limits for operating the ZH07 sensor module?

The module is rated for continuous operation within a temperature range of -10°C to 60°C and a relative humidity range of 0% to 80% (non-condensing). It should be stored between -30°C and 70°C. Avoid exposing the laser aperture to direct contamination or condensation to maintain measurement accuracy.

Package Includes

  • 1 x Winsen ZH07 Laser Dust Sensor Module

Additional Information

Weight 0.03 kg
Dimensions 4.8 × 4 × 1.25 cm