Environmental (temperature, humidity, air quality)

SKU: LB-LR0214-16 | Brand: Little Bird

This compact 12V temperature controller features a 3-digit LED display for setting and monitoring temperature, along with a built-in 10A relay for switching heating or cooling loads. It uses an NTC thermistor probe (i...

SKU: LB-24-MQ2 | Brand: Little Bird

This is the MQ-2 smoke sensor module. It is sensitive to flammable gases such as LPG, propane, and methane. Find our tutorial here It has four pins:AO: Analog OutputDO: Digital OutputGND: In electronics, we defi...

SKU: SF-SEN-00245 | Brand: SparkFun

The DS18B20 is a digital temperature sensor from Maxim (now Analog Devices) that communicates over a 1-Wire bus. It reports temperature in degrees Celsius with 9 to 12-bit configurable resolution. Each sensor has a un...

SKU: DF-SEN0335 | Brand: DFRobot

Build up a simple environmental monitor station with this multi-function environment sensor! Based on the combination of CCS811+BME280 chip, this module features high accuracy, I2C interface, and fast Measurement. ...

SKU: FT-HUMID | Brand: Freetronics

Measure temperature and relative humidity with this simple, Arduino-compatible sensor module based on the DHT22. With just three connections (GND, power, and data), you can read both temperature and humidity from a si...

SKU: DF-SEN0220 | Brand: DFRobot

The Gravity UART Infrared CO2 Sensor uses non-dispersive infrared (NDIR) technology to measure carbon dioxide concentrations from 0 to 50,000 ppm. It offers excellent selectivity with no oxygen dependency, built-in te...

SKU: SF-SEN-09404 | Brand: SparkFun

This is a simple-to-use compressed natural gas (CNG) sensor, suitable for sensing natural gas (composed of mostly Methane [CH4]) concentrations in the air. The MQ-4 can detect natural gas concentrations anywhere from ...