Environmental (temperature, humidity, air quality)

SKU: LB-LR0102 | Brand: Little Bird

The DHT22 (also known in Australia by RHT03) is a low cost humidity and temperature sensor with a single wire digital interface. The sensor comes pre-calibrated and in a breadboard compatible module form so you don...

SKU: DF-KIT0021 | Brand: DFRobot

A waterproof DS18B20 digital temperature sensor kit with everything you need to connect to an Arduino. The stainless steel probe measures temperatures from -55°C to +125°C over a 1-Wire interface, requiring just one d...

SKU: AF-4890 | Brand: Adafruit

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 taped to a flat surface, it's only 0.2mm wide!The resistance in 25°C is ...

SKU: AF-5064 | Brand: Adafruit

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 interface.The enclosed box is a Sensiron SHT-30 digita...

SKU: DF-SEN0546 | Brand: DFRobot

This I2C digital temperature & humidity sensor offers high accuracy of ±3.0RH% for humidity and ±0.5°C for temperature and features a user-programmable humidity & temperature alarm function.Its housing is made of 304 ...

SKU: DF-SEN0385 | Brand: DFRobot

This is an SHT31 Temperature & Humidity sensor housed in a weather-proof enclosure. The sensor is designed to be waterproof so you can use it safely in outdoor projects. Please note that although the sensor is waterpr...

SKU: AF-5181 | Brand: Adafruit

The AM2301B is an affordable enclosed temperature and humidity sensor featuring an I2C interface — a modern upgrade over the classic DHT22/AM2302 sensors that required bit-bang timing protocols. Inside is the proven A...

SKU: AF-3245 | Brand: Adafruit

Thermocouples are best used for measuring temperatures that can go above 100°C. This is a bare wires stainless-steel tip probe which can measure air or surface temperatures. Most inexpensive thermocouples have a vi...

SKU: SF-SEN-13715 | Brand: SparkFun

This is a stainless steel, Type-K Thermocouple probe. A thermocouple works by taking two wires made of dissimilar metals, connecting them at the two ends, and making a temperature gradient between one end and the othe...

SKU: AF-270 | Brand: Adafruit

A Type-K thermocouple with fiberglass braid insulation, rated to 500°C — far beyond the ~200°C limit of standard vinyl-insulated thermocouples. The bare bead probe design is suited to measuring both air and surface te...

SKU: AF-5182 | Brand: Adafruit

The AM2315C is an enclosed I2C temperature and humidity sensor featuring the modern AHT20 sensor inside a rugged housing with mounting bracket. It offers the same convenient form factor as the original AM2315 but with...

SKU: DF-SEN0139 | Brand: DFRobot

This is a K type Thermocouple (Temperature sensor) which is very popular for 3D printers such as Ultimaker and Makerbot. You can hardly damage them or mishandle them. You just need an additional IC (Like an AD595) ...

SKU: DF-SEN0640 | Brand: DFRobot

  The RS485 Photoelectric Solar Radiation Sensor is designed for precise solar radiation measurement within the 400-1100nm spectral range. Utilizing the photoelectric principle, it converts sunlight into electric...

SKU: DF-SEN0642 | Brand: DFRobot

An industrial-grade RS485 UV sensor that measures ultraviolet intensity (0–15 mW/cm²) and UV index (0–15) across the 290–390 nm wavelength range, covering both UVA and UVB bands. It communicates via the Modbus-RTU pro...

SKU: EF-EF05041 | Brand: ElecFreaks

The PlanetX Waterproof 18B20 Temperature Sensor is a sensor that senses temperature and converts it into a usable output signal. It is waterproof and can be used for temperature measurement. It is usually used for the...

SKU: DF-SEN0454 | Brand: DFRobot

A relay-output water leak detector with NO/NC (normally open/normally closed) switching. When water contacts the two sensing probes, the built-in relay triggers — suitable for activating alarms or shutting off equipme...

SKU: AF-3895 | Brand: Adafruit

Thermocouples are best used for measuring temperatures that can go above 100°C. This is a bare-wire bead-probe which can measure air or surface temperatures. Most inexpensive thermocouples have a vinyl covering whi...

SKU: DF-SEN0148 | Brand: DFRobot

This is an anti-rust, robust and precise SHT10 sensor, which can master enterprise-class and industrial-level applications. It can be applied in various fields: telepoint base stations, electronic control cabinet, pr...

SKU: SF-SEN-00251 | Brand: SparkFun

36" high temperature Type-K Thermocouple with glass braid insulation.

SKU: AF-642 | Brand: Adafruit

This is a pre-wired and waterproofed version of the DS18B20 sensor made with a PTFE wire cable. Handy for when you need to measure something far away, or in wet conditions. This sensor is a little more expensive th...