CO₂ Humidity & Temperature Sensor - SCD30

NDIR Optical CO₂ Sensing Technology: Employs Sensirion’s dual-channel Non-Dispersive Infrared (NDIR) optical technology for highly accurate carbon dioxide detection with automatic baseline compensation.

Integrated 3-in-1 Climate Telemetry: Measures CO₂ concentration, relative humidity, and ambient temperature simultaneously on a single compact sensor package.

Dual Communication Interfaces: Supports both I2C digital bus and UART Modbus protocols, allowing seamless connection to microcontrollers, single-board computers, and industrial controllers.

High-Precision Environmental Measurement: Accurately measures CO₂ from 400 ppm to 10,000 ppm (-+ 30 ppm + 3%), humidity from 0% to 100% RH, and temperature from -40°C to +70°C.

Onboard Pressure & Temperature Compensation: Features built-in pressure compensation options for precise CO₂ readings across varying altitudes and ambient weather conditions.

Board Material: Heavy-duty FR-4 glass-epoxy breakout PCB with gold-plated pads, onboard optical chamber, and protective filter membrane.

Technical Specifications:

Sensor Element: Sensirion SCD30 NDIR CO₂, Temperature, and Humidity Module.

Operating Voltage: 3.3V – 5.5V DC.

CO₂ Measurement Range: 400 ppm – 10,000 ppm.

Temperature Measurement Range: -40°C – +70°C (-+ 0.5°C accuracy).

Humidity Measurement Range: 0% – 100% RH (-+ 3% RH accuracy).

Communication Interfaces: I2C / UART Modbus.

Board Color: Green PCB with Black Optical NDIR Chamber.

Usage Advice: Connect to a stable 3.3V - 5V power source; run continuous calibration routines or enable Automatic Self-Calibration (ASC) in well-ventilated environments for best accuracy.

Maintenance: Do not touch or peel the white protective PTFE membrane over the optical chamber to avoid contamination and calibration drift.

Essential Commercial Air Quality Module: Position as a top-tier sensor choice for HVAC demand-controlled ventilation, indoor air quality (IAQ) monitors, greenhouse automation, and smart home climate nodes.

Highlight True NDIR CO₂ Sensing: Emphasize how genuine optical NDIR sensing far outperforms estimated eCO₂ metal-oxide sensors in precision and long-term stability.

Recommended Cross-Sell Add-ons: Pair with SHT20 - temperature and humidity Modbus RS485 Module, GY-SHT30 3.3V Digital Temperature & Humidity Sensor, AM2305 I2C digital temperature & humidity module, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Temperature Sensor Modules collection page as your high-accuracy NDIR CO₂ and climate monitoring module.