SCD40 CO2 Gas Sensor Module (1-Pack), 3-in-1 Carbon Dioxide, Temperature & Humidity Detector Board, Photoacoustic I2C Interface Breakout for HVAC, Air Quality & IoT Nodes

Accelerate your environmental monitoring and smart home IoT projects with this SCD40 CO2 Gas Sensor Module. Built around the highly advanced SCD40 miniature sensor chip utilizing photoacoustic NDIR sensing technology, this comprehensive 3-in-1 breakout board delivers highly accurate readings of Carbon Dioxide (CO2) concentration, ambient temperature, and relative humidity simultaneously. Featuring a standard I2C digital interface and an ultra-compact footprint, it is the perfect environmental detection hardware for HVAC ventilation control, indoor air quality monitors, smart agriculture greenhouses, and embedded IoT nodes.

• Next-Gen Photoacoustic CO2 Sensing: Employs cutting-edge photoacoustic NDIR (Non-Dispersive Infrared) measurement principles to drastically shrink the sensor's physical size without compromising optical precision, delivering fast and reliable CO2 concentration data.
• True 3-in-1 Environmental Monitoring: Simultaneously outputs three critical environmental parameters: CO2 levels, ambient temperature, and relative humidity (RH). The integrated on-chip temperature and humidity sensors also provide real-time signal compensation for the CO2 readings to ensure maximum accuracy.
• Standard Digital I2C Communication: Outputs fully calibrated and linearized data over a standard I2C digital bus. Easily interfaces with a wide variety of microcontrollers (MCUs), single-board computers (SBCs), and embedded Linux systems with minimal wiring.
• 400 to 2000 ppm Factory Calibrated Range: Delivers highly accurate CO2 concentration measurements within the standard 400 to 2000 ppm range (with capabilities up to 40,000 ppm). Features automatic baseline calibration (ASC) to maintain long-term stability without manual recalibration.
• Wide Voltage & Low Power Consumption: Operates seamlessly across a wide voltage input range of 2.4V to 5.5V DC, making it natively compatible with both 3.3V and 5V logic systems. Optimized for low current draw in battery-powered IoT devices.
• Breadboard-Friendly Breakout Board: The module comes pre-mounted on an easy-to-use PCB breakout board with standard 2.54mm (0.1") pitch headers, allowing for rapid prototyping, soldering, and wire-jumping on standard breadboards.
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