SKU: SENS-0294
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Winsen MP901 Air-Quality Gas Sensor - Metal Cap Encapsulation

₹359.00 (Inclusive of all taxes)
Out of Stock

The Winsen MP901 is a semiconductor VOC gas sensor designed for air quality monitoring in home, office, and fresh air systems. It provides a detection range of 1–50 ppm and is compatible with simple signal conditioning circuits for integration into air cleaners and environmental monitoring devices.

Features

  • Semiconductor flat-surface sensor with metal cap encapsulation for durability.
  • Detects a wide range of VOCs including alcohol, smoke, formaldehyde, toluene, and benzene (1–50 ppm).
  • Utilizes multilayer thick-film manufacturing on a miniature Al2O3 ceramic substrate.
  • Low power consumption with a simple interface for easy circuit integration.
  • Requires an initial warm-up period of over 48 hours for stable operation.

Out of stock

Description

The MP901 gas sensor operates on the principle of metal oxide semiconductor (MOS) conductivity change in the presence of target gases. The sensor element consists of a heater and semiconductor material deposited on a subminiature alumina ceramic substrate, with electrodes brought out via down-leads and sealed within a metal housing. As VOC concentration increases, the sensor’s conductivity rises proportionally, allowing a basic external circuit to convert this change into a corresponding gas concentration output signal.

Designed for long-term stability in indoor environmental monitoring, the sensor is suited for integration into air purifiers, HVAC fresh air systems, and smart home air quality monitors. Its metal cap encapsulation provides mechanical protection and helps maintain stable performance under typical indoor temperature and humidity conditions.

Key Features

  • High sensitivity to a broad spectrum of volatile organic compounds (VOCs).
  • Multilayer thick-film manufacturing ensures consistent sensor performance.
  • Metal cap and socket encapsulation offers robust physical and environmental protection.
  • Low power consumption design suitable for continuous monitoring applications.
  • Simple detection circuit requirement lowers system integration complexity.
  • Good long-term stability and operational lifespan for reliable air quality assessment.

Applications

  • Indoor air quality monitoring in residential and commercial HVAC systems.
  • Integration into air purifiers and fresh air units for VOC level control.
  • Smart home and building automation systems for environmental sensing.
  • Portable air quality detectors and environmental data loggers.

Technical Specifications

Manufacturer Part NumberMP901
Sensor TypeSemiconductor (Metal Oxide)
Standard EncapsulationMetal Cap
Detection Range1 – 50 ppm
Recommended Operating Conditions20°C ± 2°C, 65% ± 5% RH
Warm-Up Time> 48 hours
Shipping Weight0.01 kg
Shipping Dimensions4 x 3 x 1 cm

Frequently Asked Questions

What is the warm-up time required for the MP901 sensor?

The MP901 sensor requires an initial warm-up period of more than 48 hours under recommended conditions (20°C ± 2°C, 65% ± 5% RH) to achieve stable baseline performance and accurate VOC readings. This extended conditioning is typical for metal oxide semiconductor sensors to ensure long-term stability.

What gases does the Winsen MP901 detect?

The MP901 is sensitive to a wide range of volatile organic compounds (VOCs) including alcohol, smoke, formaldehyde, toluene, acetone, benzene, and lighter gases. Its semiconductor sensing principle provides a broad-spectrum response to organic vapors within its 1–50 ppm detection range.

How do I interface with the MP901 sensor?

The MP901 outputs a change in conductivity proportional to gas concentration. Interface requires a simple external circuit, typically a voltage divider with a load resistor, to convert the sensor's resistance change into a measurable voltage signal for an ADC or microcontroller. No digital communication protocol (I2C/SPI) is built-in.

Package Includes

  • 1 x Winsen MP901 Air-Quality Gas Sensor

Additional Information

Weight 0.01 kg
Dimensions 3 × 4 × 1 cm