The sensing element of Figaro gas sensors is a tin dioxide (SnO2) semiconductor which has low conductivity in clean air. In the presence of a detectable gas, the sensor’s conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration. The TGS 822 has high sensitivity to the vapors of organic solvents as well as other volatile vapors. It also has sensitivity to a variety of combustible gases such as carbon monoxide, making it a good general purpose sensor. FEATURES: High sensitivity to organic solvent vapors such as ethanol High stability and reliability over a long period Long life and low cost Uses simple electrical circuit Detectable Gases: carbon monoxide, ammonia, sulfur dioxide, alcohol, petrol, etc. Suitable for smoke and alcohol detectors. PHYSICAL DIAGRAM: PHYSICAL DIAGRAM RELATED DOCUMENTS: Figaro Gas Sensor TGS 822 Datasheet. APPLICATIONS: Breath alcohol detectors. Gas leak detectors/alarms. Solvent detectors for factories. PACKAGE INCLUDES: 1 X Figaro Carbon Monoxide Gas Sensor TGS 822

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The sensing element of Figaro gas sensors is a tin dioxide (SnO2) semiconductor which has low conductivity in clean air. In the presence of a detectable gas, the sensor’s conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration. The TGS 822 has high sensitivity to the vapors of organic solvents as well as other volatile vapors. It also has sensitivity to a variety of combustible gases such as carbon monoxide, making it a good general purpose sensor. FEATURES: High sensitivity to organic solvent vapors such as ethanol High stability and reliability over a long period Long life and low cost Uses simple electrical circuit Detectable Gases: carbon monoxide, ammonia, sulfur dioxide, alcohol, petrol, etc. Suitable for smoke and alcohol detectors. PHYSICAL DIAGRAM: PHYSICAL DIAGRAM RELATED DOCUMENTS: Figaro Gas Sensor TGS 822 Datasheet. APPLICATIONS: Breath alcohol detectors. Gas leak detectors/alarms. Solvent detectors for factories. PACKAGE INCLUDES: 1 X Figaro Carbon Monoxide Gas Sensor TGS 822

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Bosch’s BME280 humidity and pressure sensor is an integrated environmental sensor developed specifically for mobile applications where size and low power consumption are key design constraints. The unit combines individual high linearity, high accuracy sensors for pressure, humidity and temperature in an 8-pin metal-lid  LGA package, designed for low current consumption , long term stability and high EMC robustness. The humidity sensor features an extremely fast response time which supports performance requirements for emerging applications such as context awareness, and high accuracy over a wide temperature range.

The pressure sensor is an absolute barometric pressure sensor which features exceptionally high accuracy and resolution at very low noise. The integrated temperature sensor has been optimized for very low noise and high resolution. It is primarily used for temperature compensation of the pressure and humidity sensors, and can also be used for estimating ambient temperature. The BME280 supports a full suite of operating modes which provides the flexibility to optimize the device for power consumption, resolution and filter performance.

FEATURES:

  1. Interface: I²C & SPI
  2. Supply Voltage: 1.71-3.6V
  3. Temperature Range: -40 to +85°C
  4. Humidity Range: 0-100% rel. humidity
  5. Pressure Range: 300-1100hPa
  6. Humidity sensor and pressure sensor can be independently enabled/disabled
  7. Register and performance compatible to Bosch Sensortec BMP280 digital pressure sensor

RELATED DOCUMENTS:

  1.  Bosch Humidity and Pressure Sensor BME280 Datasheet.

APPLICATIONS:

  1. Context awareness, e.g. skin detection, room change detection
  2. Health monitoring / well-being
  3. Warning regarding dehydration or heat stroke
  4. Measurement of lung volume and air flow
  5. Home automation control
  6. Control heating, ventilation, air conditioning (HVAC)
  7. Internet of things
  8. GPS enhancement (e.g. time-to-first-fix improvement, dead reckoning, slope detection)
  9. Indoor navigation (change of floor detection, elevator detection)
  10. Outdoor navigation, leisure and sports applications
  11. Weather forecast
  12. Vertical velocity indication (rise/sink speed)

PACKAGE INCLUDES:

  1. 1 X Bosch Humidity and Pressure Sensor BME280
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Description

Bosch’s BME280 humidity and pressure sensor is an integrated environmental sensor developed specifically for mobile applications where size and low power consumption are key design constraints.

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Be the first to review “The sensing element of Figaro gas sensors is a tin dioxide (SnO2) semiconductor which has low conductivity in clean air. In the presence of a detectable gas, the sensor’s conductivity increases depending on the gas concentration in the air. A simple electrical circuit can convert the change in conductivity to an output signal which corresponds to the gas concentration. The TGS 822 has high sensitivity to the vapors of organic solvents as well as other volatile vapors. It also has sensitivity to a variety of combustible gases such as carbon monoxide, making it a good general purpose sensor. FEATURES: High sensitivity to organic solvent vapors such as ethanol High stability and reliability over a long period Long life and low cost Uses simple electrical circuit Detectable Gases: carbon monoxide, ammonia, sulfur dioxide, alcohol, petrol, etc. Suitable for smoke and alcohol detectors. PHYSICAL DIAGRAM: PHYSICAL DIAGRAM RELATED DOCUMENTS: Figaro Gas Sensor TGS 822 Datasheet. APPLICATIONS: Breath alcohol detectors. Gas leak detectors/alarms. Solvent detectors for factories. PACKAGE INCLUDES: 1 X Figaro Carbon Monoxide Gas Sensor TGS 822”

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