ShenzhenYijiajie Electronic Co., Ltd.
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram |
| Supply Ability | 2200 |
| Delivery Time | 5-8 days |
| Packaging Details | Box pack |
| Detected Gases | VOC |
| Algorithm Output | VOC Index 1–500 |
| VOC Measurement Range | 0–10,000 ppb |
| NOₓ Measurement Range | 0–10,000 ppb |
| Resolution | 1 ppb |
| VOC Response Time T90 | <10 s |
| Long-term stability | <2%/month |
| Power supply voltage | DC 3.3V / 5V |
| Brand Name | YJJ |
| Model Number | GY-SGP41 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T, Western Union, MoneyGram | Supply Ability | 2200 |
| Delivery Time | 5-8 days | Packaging Details | Box pack |
| Detected Gases | VOC | Algorithm Output | VOC Index 1–500 |
| VOC Measurement Range | 0–10,000 ppb | NOₓ Measurement Range | 0–10,000 ppb |
| Resolution | 1 ppb | VOC Response Time T90 | <10 s |
| Long-term stability | <2%/month | Power supply voltage | DC 3.3V / 5V |
| Brand Name | YJJ | Model Number | GY-SGP41 |
| Place of Origin | CHINA | ||
| High Light | VOC NOx air quality sensor ，smart home gas sensor module ，IoT air quality monitoring module | ||
Product Description:
YJJ GY-SGP41 VOC + NOₓ Air Quality Module for Smart Home and IoT Devices
Features:
I. Core Parameters (Based on SGP41 Chip + GY Module Board)
1. Detection Object and Output
Detected Gases: VOC (Volatile Organic Compounds), NOₓ (Nitrogen Oxides)
Algorithm Output: VOC Index 1–500, NOₓ Index 0–500; eCO₂ (Equivalent CO₂) can be calculated
VOC Measurement Range: 0–10,000 ppb (Typical 500–10,000 ppb)
NOₓ Measurement Range: 0–10,000 ppb
Resolution: 1 ppb (Original Signal 16 bits)
2. Response and Accuracy
VOC Response Time T90: <10 s
NOₓ Response Time T90: <250 s
Accuracy (Standard Conditions): VOC ±15%; NOₓ ±50 ppb
Long-term stability: <2%/month (anti-pollution, low drift)
3. Electrical characteristics (module)
Power supply voltage: DC 3.3V / 5V (compatible); onboard 1.8V LDO supplies SGP41
Operating current: ≈40 mA (peak); typical 3 mA @3.3V
Standby current: ≈0.1 μA
Communication interface: I2C (standard mode, 100 kHz), 7-bit address 0x59
4. Environmental and physical
Operating temperature: -30℃ ~ +70℃ (industrial grade)
Humidity: 0%–90% RH (no condensation)
Storage temperature: 5℃–30℃
Module size: 13 mm × 10.5 mm × 2 mm (including pin headers)
Chip package: DFN 2.44×2.44×0.85 mm
II. Key features
Dual gas integration: Single chip simultaneously measures VOC + NOₓ, outputs standardized index, no need for complex calibration.
Algorithm mature: Built-in Sensirion Gas Index algorithm, resistant to alcohol, perfume, etc. interference, long-term stable.
Wide temperature low power consumption: Available from -30℃ to +70℃, suitable for battery-powered IoT devices.
Plug-and-play: Direct I2C output of digital quantity, 3.3V/5V compatible, no need for peripheral circuits.
Expandable eCO₂: Convert VOC index to equivalent CO₂, meet comprehensive indoor air quality (IAQ) monitoring requirements.
III. Main applications
1. Indoor air quality monitoring (core)
Smart home: Air purifier, fresh air system, intelligent air conditioner (automatic speed adjustment / start/stop)
Office / classroom: Real-time monitoring of VOC (formaldehyde, benzene) + NOₓ (fume, exhaust)
Bedroom / baby room: Early warning of odors, harmful gases, ensure health
2. Household and risk control
Kitchen: (NOₓ/ automatically start)
Bathroom: Odor (VOC) monitoring, automatic exhaust
Air conditioner / fresh air: Automatically adjust air volume according to IAQ index, energy-saving
3. Industrial and IoT
Small factory / warehouse: Monitoring of volatile chemical substances leakage, painting exhaust gas
Portable detector: Handheld air quality pen, environmental monitoring terminal
IoT node: City micro-station, building automation (BA) system
Specifications:
| Typical precision | ±(50 ppm + 5 % |
| Specified range | 400 ppm / 2'000 ppm |
| Low power single trigger | There is no |
| Packing type | take-up / 600 |
| size | 10.1 x 10.1 x 6.5 mm3 |
| T90 Response Time | ≤ 30s |
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
2006
Total Annual:
900000-1000000
Employee Number:
50~80
Ecer Certification：
Verified Supplier
Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph... Yijiajie Electronics is a full range of silicon pressure sensors from the United States, FREESCALE/, GE, MEAS, SMI, and a full range of sensing and control products from the United States pressure, temperature and humidity, gas flow, current, Hall effect, etc., Japan HAMAMATSU flame, UV sensors, ph...
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