MQ-131 Ozone Gas Sensor Module High-Level Gas Detection

The MQ-131 Ozone Gas Sensor Module is a sensitive and practical ozone sensor module designed for detecting ozone (O) in the surrounding environment. It uses SnO as its sensing material, which has relatively low conductivity in clean air but increases in conductivity when exposed to ozone. This change can be measured through a simple electronic circuit and converted into an output signal corresponding to the gas concentration.

The MQ-131 ozone gas sensor also shows sensitivity to gases such as chlorine (Cl) and nitrogen dioxide (NO), making it useful for a variety of gas detection and environmental monitoring projects. It can be integrated with Arduino and other microcontroller-based systems for DIY ozone gas detector, air-quality monitoring, and gas-sensing applications.

Features:

• Fast response characteristics.
• Mounting holes allow for a more permanent placement.
• The probe’s plug design allows for easy testing.
• The signal light indicates the output.
• Dual signal output (analog and TTL-level output).
• TTL output valid signal is low (low output signal light, accessible via the microcontroller’s IO port)
• Analog output grows with the concentration; the higher the voltage, the greater the concentration.
• The ozone gas with high sensitivity (detection concentration range: 10PPB-2PPM Ozone)
• Long life and consistent steadiness.