MP135 Air Pollution Gas Sensor DIP-4 - Metal Oxide Semiconductor (MOS) Analog Output
The MP135 is a metal oxide semiconductor (MOS) gas sensor in a DIP-4 package, providing an analog resistance-based output for detecting reducing gases like hydrogen (Hâ‚‚), carbon monoxide (CO), and alcohol vapors. It is compatible with 5V microcontroller systems such as Arduino and Raspberry Pi for indicative air quality monitoring.
Features
- Metal Oxide Semiconductor (SnOâ‚‚) sensor for Hâ‚‚, CO, and alcohol vapor detection.
- Analog resistance-based output suitable for direct ADC interface with microcontrollers.
- Operates with a 5V DC heater supply and consumes ≤900 mW.
- DIP-4 package design for easy PCB mounting and prototyping applications.
- Fast response and recovery time for general air quality trend monitoring.
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The MP135 utilizes a tin dioxide (SnOâ‚‚) based metal oxide semiconductor (MOS) sensing element. When exposed to reducing gases, the sensor’s conductivity changes, producing a variable resistance output that can be read as an analog voltage via a simple voltage divider circuit. This makes it directly compatible with analog-to-digital converters (ADCs) on common development platforms.
As a non-selective sensor, the MP135 responds broadly to a class of reducing gases and is influenced by ambient temperature and humidity. It is designed for indicative monitoring, leak detection, and air quality trend analysis rather than calibrated, quantitative measurement. The integrated heater stabilizes the sensing element and requires a regulated 5V supply.
Additional Information
| Weight | 0.003 kg |
|---|---|
| Dimensions | 3 × 3 × 2 cm |
