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 |
| Package | 4 pins |
| Detected Gases | Formaldehyde |
| Detection Range | 0.5 - 1000 ppm |
| Sensitivity | Highly sensitive |
| Loop Voltage VC | 5.0 V ± 0.1 V DC |
| Heating Voltage VH | 5.0 V ± 0.1 V DC |
| Heating Resistor RH | 95 Ω ± 10 Ω |
| Load Resistor RL | Adjustable externally |
| Brand Name | YJJ |
| Model Number | MP905 |
| 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 |
| Package | 4 pins | Detected Gases | Formaldehyde |
| Detection Range | 0.5 - 1000 ppm | Sensitivity | Highly sensitive |
| Loop Voltage VC | 5.0 V ± 0.1 V DC | Heating Voltage VH | 5.0 V ± 0.1 V DC |
| Heating Resistor RH | 95 Ω ± 10 Ω | Load Resistor RL | Adjustable externally |
| Brand Name | YJJ | Model Number | MP905 |
| Place of Origin | CHINA | ||
| High Light | semiconductor VOC sensor for IoT ，air quality sensor for household appliances ，gas sensor with semiconductor technology | ||
Product Description:
YJJ MP905 Semiconductor VOC / Air Quality Sensor Household Appliances and IoT Devices
Features:
I. Core Parameters (Official Winsen)
Model: MP905
Type: Planar Semiconductor Gas Sensor (MOx)
Package: Metal Cap Package (4 pins)
Detected Gases: Formaldehyde, Benzene, Alcohol, Smoke, Lighter Gas, Paint Volatile Organic Compounds (Broad-spectrum VOC)
Detection Range: 0.5 - 1000 ppm (Alcohol)
Sensitivity: Highly sensitive to low-concentration VOCs / Formaldehyde / Benzene compounds
Electrical Parameters
Loop Voltage VC: 5.0 V ± 0.1 V DC
Heating Voltage VH: 5.0 V ± 0.1 V DC
Heating Resistor RH: 95 Ω ± 10 Ω (Room Temperature)
Heating Power Consumption PH: ≤ 300 mW
Load Resistor RL: Adjustable externally
Performance Indicators
Response Time T90: ≤ 20 s
Recovery Time: ≤ 60 s
Operating Temperature: 0 - 50℃
Operating Humidity: ≤ 95% RH (No Condensation)
Life Span: ≥ 5 Years (Typical)
II. Working Principle
The ceramic substrate (Al₂O₃) integrates a heater + metal oxide gas-sensitive layer.
When encountering reducing gases (VOC, Formaldehyde, Benzene, Smoke), the electrical conductivity increases with the concentration.
An external simple circuit can convert the resistance change into a voltage signal to reflect the gas concentration.
III. Main Applications (Very Common)
Indoor Air Quality (IAQ) Monitoring
Air Purifiers, Fresh Air Systems, Smart Air Conditioners (Automatic Speed Control / Start/Stop)
Bedrooms, Baby Rooms, Offices: Warning for Formaldehyde, Benzene, TVOC, Smoke
Kitchen / Bathroom Smart Control
Smoke Detection with: Automatic start when VOC / Formaldehyde exceeds the limit
Bathroom: Monitoring of (VOC), Automatic Exhaust Ventilation
Smart Home and IoT
Home Air Quality Detectors, Portable Pens, IoT Nodes
Simple Screening of Formaldehyde / Benzene Pollution in Newly Built Houses
Industrial and Commercial
Small Workshops, Warehouses: Painting, Printing, Solvent Volatilization Monitoring
Shopping Malls, Conference Rooms: Monitoring of and Harmful Gases
Specifications:
| Sensitive extreme voltage VC | 5.0V ± 0.1V DC |
| Resistance RH | 95Ω ± 10Ω |
| Heating power consumption PH | ≤ 300mW |
| Load resistance RL | Adjustable externally |
| 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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