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 |
| Power Supply | 3.0–5.0V DC |
| Power Consumption | <3 mW |
| Interface | Full digital UART (TTL) |
| Size | φ20.3 × 16.6 mm |
| Weight | 15.5 g |
| Range | 0–100% VOL |
| Accuracy | ±0.1% VOL |
| Response T90 | ≤ 30 s |
| Brand Name | MIPEX |
| Model Number | MIPEX-02-1-I-3.1A (20) |
| Place of Origin | Russia |
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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 |
| Power Supply | 3.0–5.0V DC | Power Consumption | <3 mW |
| Interface | Full digital UART (TTL) | Size | φ20.3 × 16.6 mm |
| Weight | 15.5 g | Range | 0–100% VOL |
| Accuracy | ±0.1% VOL | Response T90 | ≤ 30 s |
| Brand Name | MIPEX | Model Number | MIPEX-02-1-I-3.1A (20) |
| Place of Origin | Russia | ||
| High Light | NDIR methane gas sensor ，infrared CH4 gas detector ，coal mine gas sensor | ||
Product Description:
YJJ MIPEX-02-1-I-3.1A (20) NDIR Infrared Methane CH4 Gas Sensor Suitable Coal Mines/Underground
Features:
I. Model Meaning (MIPEX-02-1-I-3.1A)
MIPEX-02: Series (Second-generation NDIR, Low Power Consumption)
1: Gas Type = Methane CH₄ (0–100% VOL)
I: Class I explosion-proof (Applicable in coal mines / underground environments) Ex ia I Ma U
3.1A: Range = 0–100% VOL CH₄, Standard Accuracy Version
(20): Batch / Calibration Code
II. Core Parameters
1. Electrical and Power Consumption
Power Supply: 3.0–5.0V DC (Recommended 3.3V)
Power Consumption: <3 mW (Typical 1.5 mW), Industry's Lowest
Interface: Full digital UART (TTL), No Analog Calibration Required
Size: φ20.3 × 16.6 mm (Metal Package)
Weight: Approximately 15.5 g
2. Measurement Performance (CH₄)
Range: 0–100% VOL (Can also measure 0–100% LEL)
Accuracy: ±0.1% VOL or ±5% Reading (Take the Higher Value)
Response T90: ≤30 s (Fast Version < 10 s)
Repeatability: ≤±0.05% VOL
Long-Term Stability: Drift < 2%/Year, Lifespan 10 Years +
3. Environment and Explosion-proof
Temperature: -40℃ ~ +60℃ (Ultra-Wide Temperature Range)
Humidity: 0–98% RH (No Condensation)
Explosion-proof: Ex ia I Ma U / Ex ia IIC Ga U (ATEX/IECEx)
Certification: ATEX, IECEx, ETL, ISO 9001
III. Working Principle (NDIR Infrared)
Based on Non-Dispersive Infrared Absorption (NDIR), Dual Beam (Signal + Reference) Compensation for Drift
Built-in High-Performance Infrared LED + PbSe-CdSe Photodiode (Sensitivity 10 Times Higher than Thermosensitive)
Integrated Temperature Sensor + Microcontroller, Automatic Linearization and Temperature Compensation
Resistant to Moisture, Dust, Long-Term Drift, Suitable for Harsh Industrial Environments
IV. Main Applications
1. Coal Mine / Mine Safety (Core Scenario of Class I Explosion-proof)
Underground Methane (Gas) Monitoring, Portable Instrument / Fixed Probe
Gas Over-limit Alarm in Tunnels, Shafts, Mining Surfaces, Prevention of Explosions
2. Oil and Gas (Upstream / Downstream)
CH₄ Leak Detection on Drilling Platforms, LNG Storage Tanks, Gas Pipelines
Gas Monitoring in Refineries, Compressor Rooms, Gas Stations
3. Industrial Safety and Environmental Protection
CH₄ Concentration Monitoring in Chemicals, Coking, Biogas Projects, Sewage Treatment
Gas Warning in Underground Pipe Lanes, Cable Tunnels, Enclosed Spaces
4. Portable Equipment and Internet of Things
Handheld Gas Detector, Wireless Sensor Node (Ultra-Low Power Consumption, Battery Available for Years)
Smart Home Gas Alarm, Industrial IoT Remote Monitoring Terminal
Specifications:
| Measurement range | 0–100% LEL |
| Working life | 2 years in air |
| Output | 1200 + 200 na/PPM |
| Resolution | 0.1 PPM |
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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