Environmental Sensors

Environmental Sensors

Environmental sensors measure physical properties of the surrounding atmosphere, enabling projects to interact with and respond to real-world conditions. These components detect variables like temperature, humidity, air pressure, wind speed, magnetic fields, and the presence of gases or smoke. They are commonly used in weather stations, indoor climate monitoring, safety systems, and automated environmental controls.

Key attributes include measurement range, accuracy, output type, such as digital, analogue, or serial interfaces, and physical robustness for different operating environments. Many sensors feature standardised connectors or breakout boards to simplify wiring and integration with microcontrollers. This makes them suitable for both rapid prototyping and more permanent installations where reliable, continuous sensing is required.

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Alcohol Gas Sensor - MQ-3

Code: SKU-000267

This alcohol sensor is suitable for detecting alcohol concentration on your breath, just like your common breathalyzer.

$ 13.95

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Ammonia Gas Sensor - MQ-137

Code: SKU-006708

The MQ-137 is an Ammonia (NH₃) petrol sensor from Winsen. The sensing element is SnO2, which has lower conductivity in clean air.

$ 99.95

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Carbon Monoxide Sensor - MQ-7

Code: SKU-000407

This is a simple-to-use Carbon Monoxide (CO) sensor, suitable for sensing CO concentrations in the air.

$ 12.95

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Dual Gas CO and CH4 Detection Sensor - MQ-9B

Code: SKU-006705

The MQ-9B is a CO and CH₄ petrol detection sensor form Winsen. The sensing material of the MQ-9B is SnO2, which has a low conductivity in clean air.

$ 9.95

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Hydrogen Gas Sensor - MQ-8

Code: SKU-000826

This is a simple-to-use hydrogen petrol sensor, suitable for sensing hydrogen concentrations in the air.

$ 11.95

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Hydrogen Sulfide Gas Sensor - MQ-136

Code: SKU-006707

The MQ-136 is a Hydrogen Sulfide detection sensor with a sensing range of 1 - 200ppm. The sensing element is SnO2 which has lower conductivity in clean air

$ 67.95

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LPG Gas Sensor - MQ-6

Code: SKU-000409

This is a simple-to-use liquefied petroleum petrol (LPG) sensor, suitable for sensing LPG (composed of mostly propane and butane) concentrations in the air.

$ 11.95

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LPS22DF Pressure/Altitude Sensor Carrier with Voltage Regulator

Code: SKU-010094

This carrier for ST.’s LPS22DF digital barometer measures pressures from 260 mbar to 1260 mbar (26 kPa to 126 kPa) with absolute accuracy down to ±0.5 mbar (0.05 kPa) and typical RMS noise of 0.0034 mbar (0.34 Pa) in high-resolution mode. These pressures can easily be converted to altitudes.

$ 14.95

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LPS331AP Pressure/Altitude Sensor Carrier with Voltage Regulator

Code: SKU-003054

This carrier for ST.’s LPS331AP digital barometer measures pressures from 260 mbar to 1260 mbar (26 kPa to 126 kPa) with absolute pressure accuracy over temperature down to ±2 mbar (0.2 kPa) and typical RMS noise of 0.02 mbar (0.002 kPa) in high-resolution mode.

$ 5.95

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Methane CNG Gas Sensor - MQ-4

Code: SKU-000408

This is a simple-to-use compressed natural petrol (CNG) sensor, suitable for sensing natural petrol (composed of mostly Methane [CH4]) concentrations in the air.

$ 11.95

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