Environmental (temperature, humidity, air quality)

SKU: DF-DFR0023 | Brand: DFRobot

This is an Arduino Temperature Sensor based on LM35 temperature chip. A Temperature Sensor can be used to detect ambient air temperature.The LM35 chip is produced by National Semiconductor Corporation and offers a fun...

SKU: DF-SEN0566 | Brand: DFRobot

Fermion: MEMS Volatile Organic Compounds VOC Gas Sensor employs state-of-the-art microelectromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20mA...

SKU: AF-5665 | Brand: Adafruit

The Adafruit Sensirion SHT45 is the highest-accuracy sensor in the SHT4x family, delivering ±1.0% typical relative humidity accuracy and ±0.1 °C typical temperature accuracy. This version does not include a PTFE membr...

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-5027 | Brand: Adafruit

The Adafruit MCP9808 is a high-accuracy digital temperature sensor with ±0.25°C typical accuracy over its −40°C to +125°C range and 0.0625°C resolution. It communicates over standard I2C and runs on 2.7V to 5.5V power...

SKU: DF-SEN0219 | Brand: DFRobot

The concentration of carbon dioxide (0.03% usuallly) is related to daily life. Recently, there's a study showing that the atmospheric CO2 content has reached 0.0385% (385 ppm) which is the highest value since 2.1 ...

SKU: AF-2857 | Brand: Adafruit

The Adafruit Sensirion SHT31-D is a high-accuracy temperature and humidity sensor with a true I2C interface and PTFE filter for protection against dust and contaminants. Part of Sensirion's third-generation SHT sensor...

SKU: LB-LS4968 | Brand: Little Bird

MQ-2 Gas Sensor - Smoke & Flammable Gas Detector The MQ-2 is a reliable, easy-to-use gas sensor that’s ideal for detecting flammable gases like LPG, methane, propane, and even smoke. At its core is tin dioxide (SnO₂...

SKU: DF-SEN0569 | Brand: DFRobot

The Fermion MEMS Ethanol (EtOH) Gas Detection Sensor uses micro-electromechanical system (MEMS) technology for compact, low-power ethanol gas detection. With a detection range of 1–500 ppm, it provides qualitative mea...

SKU: DF-SEN0568 | Brand: DFRobot

Fermion: MEMS Hydrogen Sulfide H2S Gas Detection Sensor employs state-of-the-art micro-electromechanical system (MEMS) technology, endowing the sensor with compact dimensions (13x13x2.5mm), low power consumption (<20m...

SKU: DF-SEN0536 | Brand: DFRobot

The Gravity SCD41 Infrared CO2 Sensor provides accurate carbon dioxide, temperature, and humidity measurements in a single compact module. Based on Sensirion's SCD41 sensor, it uses photoacoustic NDIR (non-dispersive ...

SKU: SF-SEN-18364 | Brand: SparkFun

The DHT20 is a factory-calibrated digital humidity and temperature sensor with an I²C interface. An upgrade to the popular DHT11/DHT22 series, it provides reliable environmental measurements without requiring addition...

SKU: EC-ARS03218S | Brand: Elecrow

The board is designed for beginners in Arduino, with various components available that makes you build more than 10 projects easily. You won’t have to solder or connect anything at all, just plug it in a shield and st...

SKU: M5-U053 | Brand: Little Bird

Description Hat ENV&nbsp;It is able to detect the temperature, humidity, air pressure and magnetic field. This product relates via I2C protocol which allows you to obtain 4 types of environment data thru just 2pins...

SKU: M5-K023 | Brand: Little Bird

The PM2.5 Air Quality Kit combines a PMSA003 laser particulate sensor with an SHT20 temperature and humidity sensor in a single M5Stack-compatible module. It measures ambient particulate concentration, temperature, an...

SKU: SF-SEN-15440 | Brand: SparkFun

The BME280 Atmospheric Sensor Breakout measures barometric pressure, relative humidity, and temperature from a single compact board. With both Qwiic (I2C) and 0.1″ header connections, it integrates easily into Arduino...

SKU: EF-EF04024 | Brand: ElecFreaks

This is a Rain/steam sensor from ElecFreaks. This steam sensor can be connected to the Arduino IO Expansion shield directly. The output voltage will increase when the humidity of the sensor surface goes up.You even co...

SKU: AF-3984 | Brand: Adafruit

For precision temperature sensing, nothing beats a Platinum RTD. Resistance temperature detectors (RTDs) are temperature sensors that contain a resistor that changes resistance value as its temperature changes, bas...

SKU: LB-LR0205 | Brand: Little Bird

An alcohol sensor module for Arduino with both digital (TTL) and analog output. It detects alcohol vapour in the 10–1000 PPM range, with analog output voltage increasing proportionally with concentration. The module a...

SKU: LB-LS7682 | Brand: Little Bird

This spare outdoor unit set is designed for use with professional wireless weather stations, providing the essential sensors needed to accurately monitor local weather conditions. Ideal as a replacement set or for cus...