Oxygen Sensor I2C – DFRobot SEN0322

84.00
Sensor designed for measuring O2 concentration in the environment. The DFRobot product is compatible with 3.3 V and 5 V controllers such as Arduino, ESP32 or Raspberry Pi. It communicates via the I2C interface. The sensor range is from 0% to 25% volume.

Particle Sensor Breakout – MAX30101 – SparkFun SEN-16474

20.85
Dust sensor allows you to monitor the purity of the air. It is equipped with the Sharp GP2Y1010AU0F sensor, it allows to detect particles with diameter of more than 0.8 µm, for example, cigarette smoke. The system is powered by a voltage from 2.5 V to 5.5 V, it works in a range of up to 500 µg/m3 with a sensitivity of 0.5 V / (100µg/m3).

SS-CCS811 I2C – carbon dioxide and air quality sensor

35.85
Low-voltage carbon dioxide and air quality sensor module. The sensor module is supplied with 3.3 V and 5 V. The sensor uses an I2C interface for communication, the board has specially prepared connectors for soldering. The sensors of this type are used in home air quality monitoring stations.

SS-HDC2010 + CCS811 I2C – temperature, humidity and air purity sensor module

50.85
The module is equipped with sensors HDC2010, which is responsiblefor checking ambient air quality and CCS811, which is responsible for measuring temperature and humidity.

Temperature and humidity meter Uni-T UT333S

37.35
Digital temperature and humidity meter is an easy to use measuring device. It is equipped with a function Data HOLD allowing you to freeze the measurement and MIN / MAX function to keep the highest and lowest indication of the device. The product is used in transport and storage of various materials and documents, forestry, animal husbandry and even in health care.

The dust/air quality, formaldehyde, temperature, humidity sensor PM2.5 – PMS5003

72.66
Multifunctional sensor, which not only checks the air quality but also measures the temperature and humidity of the air. Combines electrochemical probe for formaldehyde and temperature and humidity sensor.