Environmental (temperature, humidity, air quality)

A waterproof NTC thermistor temperature sensor with a 100cm (1 metre) cable and stainless steel probe. The 10KΩ resistance at 25°C and standard B-c...

This compact 12V temperature controller features a 3-digit LED display for setting and monitoring temperature, along with a built-in 10A relay for ...

DHT11 Temperature and Humidity sensor is as powerful as it used to be but easier to use.  This  DHT11 Arduino temperature and humidity sensor has ...

This is the same temperature sensor that is included in our SparkFun Inventor’s Kit. The TMP36 is a low voltage, precision centigrade temperature s...

This is a waterproofed version of the DS18B20 Temperature sensor. Handy for when you need to measure something far away, or in wet condit...

Digital temperature sensor DS18B20, waterproof case. Working range from -55 to 125 degrees. Resolution 0.5 in range from -10 up to 85 degrees.

DHT22 capacitive humidity sensing digital temperature and humidity module is one that contains the compound has been calibrated digital signal out...

The BME688 from Bosch delivers comprehensive environmental sensing in a single compact package. This precision sensor measures temperature, humidit...

The Adafruit Universal Thermocouple Amplifier MAX31856 Breakout reads temperature from virtually any thermocouple type — K, J, N, R, S, T, E, or B ...

The Adafruit Sensirion SHT41 is a high-accuracy temperature and humidity sensor with a true I2C interface, part of Sensirion's fourth-generation SH...

Need to measure something with a very slim sensor? This precision 10K thermistor is an inexpensive way to measure temperature in a small gap, or ta...

The Adafruit BME280 Breakout is a precision environmental sensor from Bosch that measures temperature, barometric pressure, and humidity in a singl...

The Adafruit PT100 RTD Temperature Sensor Amplifier is a breakout board for the MAX31865 precision RTD-to-digital converter. It reads 2-, 3-, or 4-...

The SHTC3 digital humidity sensor from Sensirion builds on the success of the proven SHTC1 sensor and offers consistent high accuracy within the me...

A simple analogue water sensor that detects the presence and relative level of water on its surface. The sensor outputs a higher analogue value as ...

A waterproof DS18B20 digital temperature sensor kit with everything you need to connect to an Arduino. The stainless steel probe measures temperatu...

The Fermion AHT20 is a high-precision, low-cost temperature and humidity sensor breakout from DFRobot. Built around an improved MEMS semiconductor ...

A 1-metre length of soft, flexible silicone tubing with a 3 mm inner diameter. Designed for use with small air pumps, vacuums, and air valves, it's...

BME280 is an environmental sensor that integrates onboard temperature sensor, humidity sensor and barometer. The sensor is of high precision, m...

The SHT30-D sensor has an excellent ±2% relative humidity and ±0.5°C accuracy for most uses. Unlike earlier SHT sensors, this sensor has a true I2C...

The Adafruit SCD-41 is a photoacoustic true CO2 sensor that directly measures carbon dioxide concentration in ambient air with a wide measurement r...