Product Features:
1. Dual models SGP40 / SGP41 available for precise detection of VOC and NOx levels.
2. Solderless QT/Qwiic interface for plug-and-play operation with strong compatibility.
3. Rapid response tracking air quality changes in ≤2 seconds.
4. Ultra-low power design ideal for long-term battery-powered applications.
5. Industrial-grade wide temperature range, operating from -30°C to +70°C.
Technical Specifications:
Model 1: SGP40 Digital VOC Sensor Module
Detection Range: VOC Index 0-500 (covers all daily scenarios)
Operating Voltage: 3.3V ±10%
Power Consumption: 0.95mA (active) / 0.05μA (standby)
Operating Temperature: -10°C ~ +50°C
I²C Address: Fixed 0x59
Interface Type: STEMMA QT / Qwiic (I²C solderless)
Core Chip: Next-generation SGP40
Module Dimensions: 18mm × 25.3mm
VOC Index Smart Output:
Directly outputs VOC Index (0-500 scale) for instant air quality assessment without complex calibration:
0-100: Excellent ✅
100-200: Moderate ⚠️
200: Poor ❌
Response Time: ≤2 seconds, dynamically tracks instantaneous changes like human exhalation and formaldehyde release
Application Scenarios:
Smart Home: Ventilation system integration (auto-ventilation when VOC >150)
Vehicle Purification: Real-time monitoring of formaldehyde/smoke odors inside vehicles
Healthcare: Environmental alert system for asthma patients
Building Control: CO₂ accumulation monitoring for conference rooms
Precision VOC Monitoring Principle
Accurate Volatile Organic Compound Detection
Ultra-Low Power Consumption Design
Model 2: SGP41 Dual-Gas Environmental Sensor
Interface Type: STEMMA QT / Qwiic (I²C solderless)
Core Chip: SGP41 (Ultimate upgrade of SGP40)
Detection Range: Dual Index (VOC/NOx) 0-500
Operating Voltage: 3.3V ±10% (Supports 1.7-3.6V Battery Direct Drive)
Power Consumption: 1.2mA (Dual Mode) / 0.1μA (Standby)
Operating Environment: -30°C ~ +70°C (Industrial-Grade Wide Temperature Range)
Module Dimensions: 18mm × 25.3mm
I²C Address: Fixed 0x59
Functions: Dual-gas precision identification, detection metrics, application scenarios, technical advantages
VOC Index: Formaldehyde/smoke odor/body odor monitoring Accuracy ±15% (30% improvement over previous generation)
NOx Index: Automotive exhaust/combustion pollution monitoring (specialized for diesel vehicle emissions: NO₂/NO)
Dual-signal parallel output: Simultaneously acquires VOC Index + NOx Index (0-500 scale) per sample, response time <1 second
Application Scenarios:
Smart In-Vehicle Systems
Real-time Monitoring:
Excessive formaldehyde (VOC) in cabin
Tunnel exhaust accumulation (NOx) → Automatic switch to internal circulation
Industrial safety alerts
Dual-gas collaborative detection:
Diesel generator leaks (NOx↑ + VOC↑) vs. Alcohol disinfection (VOC↑ only)
Urban microclimate stations
Grid-based deployment for traffic pollution dispersion monitoring (NOx heatmap generation)
Package Contents ( Model 1 or Model 2 item ship according buyer choose)
Sensor Module × 1
5-pin Single Row Connector × 1