ShenzhenYijiajie Electronic Co., Ltd.
| Packaging Details | Canned |
| Payment Terms | L/C, D/A, D/P, T/T, , |
| Temperature range | -40℃ ～ +60℃ |
| Supply Ability | 2200 |
| Response time T90 | < 30 seconds |
| Delivery Time | 5 days |
| Humidity range | 5%–95% RH |
| 0–100% LEL | Corresponds |
| Output signal | Analog |
| Life span | 2–3 years |
| Operating voltage | 4.25V (4R + series) |
| Detection principle | Catalytic combustion |
| Brand Name | YJJ |
| Place of Origin | Britain |
| Model Number | C03-0801-000 Whittle LEL 4R+ |
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Product Specification
| Packaging Details | Canned | Payment Terms | L/C, D/A, D/P, T/T, , |
| Temperature range | -40℃ ～ +60℃ | Supply Ability | 2200 |
| Response time T90 | < 30 seconds | Delivery Time | 5 days |
| Humidity range | 5%–95% RH | 0–100% LEL | Corresponds |
| Output signal | Analog | Life span | 2–3 years |
| Operating voltage | 4.25V (4R + series) | Detection principle | Catalytic combustion |
| Brand Name | YJJ | Place of Origin | Britain |
| Model Number | C03-0801-000 Whittle LEL 4R+ | ||
| High Light | Industrial-grade catalytic combustion gas sensor ，Whittle LEL 4R+ gas sensor ，YJJ C03-0801-000 gas detector | ||
Product Description:
YJJ C03-0801-000 Whittle LEL 4R+ Industrial-grade Catalytic Combustion Gas Sensor
Features:
I. Core Parameters (Quick Overview)
Detection principle: Catalytic combustion (Whitworth bridge, platinum wire catalytic beads)
Detected gases: Methane, propane, hydrogen, ethane, ethylene, -, ethanol, etc. combustible gases/vapors
Range: 0–100% LEL (covering the conventional explosion lower limit)
Resolution: 1% LEL (industrial standard)
Accuracy: ±3% FS (full scale)
Response time T90: < 30 seconds
Operating voltage: 4.25V (4R + series)
Temperature range: -40℃ ~ +60℃
Humidity range: 5%–95% RH (no condensation)
Life span: 2–3 years (conventional industrial environment)
Output signal: Analog (4R + interface), compatible with BW host
Explosion-proof certification: Ex ia IIC T4, IECEx, CSA, etc.
II. Parameter Definitions (Reasons for Such Settings)
0–100% LEL: Corresponds to the entire range from "safe" to "explosive limit", with the alarm set at 10–20% LEL (low alarm) and 50% LEL (high alarm).
−40℃ to +60℃: Suitable for extremely cold / hot industrial sites (such as outdoor areas in the north, refining and chemical plant areas).
4R + analog interface: Specifically for BW, plug-and-play, the host automatically recognizes, compatible with Ultra, GasAlertMax XT II, etc.
Catalytic combustion: Has good linearity for most combustible gases and a moderate cost; but avoids silicon / sulfur / lead poisoning (such as when using silicon oil or in environments with high concentrations of hydrogen sulfide, filtering is required).
III. Main Applications (Industry Scenarios)
1) Petroleum and Petrochemical (Core)
Refineries, oil and gas extraction platforms, storage tank areas, pipeline valves, compressor rooms leakage monitoring.
LNG/CNG refueling stations, pressure regulating stations, explosion-proof warning for transportation pipelines.
2) Chemicals / - / Paints
Reaction vats, solvent warehouses, spray painting rooms, RTO exhaust gas treatment front end (explosion-proof).
Organic solvent (ethanol, -, ethyl acetate) concentration monitoring in pharmaceutical / pesticide workshops.
3) Gas and Energy
Urban gas ** pipeline network inspection, boiler rooms, gas meter rooms, kitchens (commercial)** leakage alarm.
Coal mine methane (methane) monitoring, detection before entering tunnels / underground confined spaces.
4) Industrial Safety and Confined Spaces
Wastewater treatment plant methane (methane), landfill gas monitoring.
Ship cabins, storage tanks, sewers, reaction vats confined space operations (test first, then enter).
Portable detectors (such as BW GasAlert), core sensing components, for inspection / emergency.
Specifications:
| Detected gases | Methane, propane |
| Range | 0-100% LEL |
| Resolution | 1% LEL |
| Accuracy | ±3% FS (full scale) |
| Sensitivity | 450-750 na/PPM |
| Response time | T90 < 30 seconds |
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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