ShenzhenYijiajie Electronic Co., Ltd.
| Supply Ability | 2200 |
| Temperature | -40℃ ～ +60℃ |
| H2S Range | 0-200 ppm |
| lifespan | ≥ 4 years |
| Protection | IP68 |
| Payment Terms | L/C, D/A, D/P, T/T, , |
| O2 Range | 0-30% Vol |
| CO Range | 0-1999 ppm |
| Complete Machine + Sensor | 4-year |
| Packaging Details | Box pack |
| LEL Range | 0-100% LEL |
| Delivery Time | 5-8 days |
| Brand Name | YJJ |
| Place of Origin | USA |
| Model Number | Altair 4XR LEL/O2/CO/H2S 10238335 |
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Product Specification
| Supply Ability | 2200 | Temperature | -40℃ ～ +60℃ |
| H2S Range | 0-200 ppm | lifespan | ≥ 4 years |
| Protection | IP68 | Payment Terms | L/C, D/A, D/P, T/T, , |
| O2 Range | 0-30% Vol | CO Range | 0-1999 ppm |
| Complete Machine + Sensor | 4-year | Packaging Details | Box pack |
| LEL Range | 0-100% LEL | Delivery Time | 5-8 days |
| Brand Name | YJJ | Place of Origin | USA |
| Model Number | Altair 4XR LEL/O2/CO/H2S 10238335 | ||
| High Light | MSA Altair 4XR gas detector ，four-in-one gas analyzer ，petrochemical gas monitor | ||
Product Description:
YJJ MSA Altair 4XR (LEL/O₂/CO/H₂S) Four-in-One Gas Detector 10238335 Petrochemical Industries
Features:
I. Core Parameters (LEL/O₂/CO/H₂S)
1. Gas Detection Specifications (Standard)
LEL (Flammable Gas)
Range: 0–100% LEL (Methane); Resolution: 1% LEL; Principle: Catalytic Combustion
O₂ (Oxygen)
Range: 0–30% Vol; Resolution: 0.1% Vol; Principle: Electrochemical
CO (Carbon Monoxide)
Range: 0–1999 ppm; Resolution: 1 ppm; Principle: Electrochemical
H₂S (Sulfur Dioxide)
Range: 0–200 ppm; Resolution: 1 ppm; Principle: Electrochemical
2. Sensors and Warranty
Sensor: XCell® Intelligent Sensor, response is approximately twice faster than the industry standard, with a lifespan of ≥ 4 years. MSA China Official Website
Complete Machine + Sensor: 4-year warranty
3. Environment and Physics
Temperature: -40℃ ～ +60℃MSA
Humidity: 15–90% RH (no condensation), short-term 5–95% RHMSA
Protection: IP68 (submerged 2 meters / 45 minutes)
Impact Resistance: 7.5 meters drop onto concrete; grade MIL-STD-810G (1.2 meters × 25 times)
Size: 112×76×33 mm; Weight: 228 gMSA
4. Power Supply and Data
Battery: Rechargeable lithium battery, continuous operation 24 hours; Charging < 4 hoursMSA
Data Recording: > 50 hours continuous recording, > 500 event logsMSA
Bluetooth: Built-in Bluetooth, connect to ALTAIR Connect App, remote viewing / alarm / configurationMSA
5. Alarm and Safety
Alarm: Sound + Light + Vibration Triple Alarm, large-screen LCD display
MotionAlert: Automatic alarm when no movement (prevents unconsciousness)
InstantAlert: Manual emergency alarm
II. Main Applications and Usage Scenarios
1. Enclosed Space Operations (Most Common)
Underground, tunnels, pipe galleries, storage tanks, ship cabins, sewage wells, etc.: First detect, then enter, prevent oxygen deficiency / oxygen enrichment, flammable gas explosion, CO/H₂S poisoning.
2. Oil and Gas / Chemicals
Drilling platforms, refineries, chemical plants, oil and gas transportation: Monitor flammable gas leaks and toxic gases (CO/H₂S), explosion prevention and poisoning prevention.
3. Municipal / Public Works
Gas emergency repairs, underground pipelines, sewage treatment plants: Prevent methane (methane) explosion and H₂S poisoning.
4. Firefighting / Emergency Rescue
Fire scenes, confined space rescue: Rapid detection of CO (smoke), O₂, LEL, H₂S, protect rescue personnel.
5. Metallurgy / Boiler Rooms / Power Plants
High furnaces, boiler rooms, generator rooms: Prevent CO poisoning and flammable gas explosion.
III. Core Advantages (Compared to Ordinary Four-in-One)
Super Durability: IP68 + 7.5 meters impact resistance, less likely to break in harsh construction sites.
Long Lifespan and Low Maintenance: XCell Sensor 4 years + lifespan, 4-year warranty, low calibration frequencyMSA
Bluetooth Smart: Remote monitoring, alarm push, data export, safer single-person operationMSA
Fast Response: Approximately 2 times faster than ordinary sensors, T90 < 15 secondsMSA
IV. Standard Alarm Thresholds (Default)
LEL: Low alarm 10% LEL; High alarm 20% LEL
O₂: Low alarm 19.5% Vol; High alarm 23.5% Vol
CO: Low alarm 25 ppm; High alarm: 100 ppm
H₂S: Low alarm: 10 ppm; High alarm: 20 ppm
Specifications:
| Core Parameters | LEL/O2/CO/H2S |
| Measurement range | 0–100% LEL (Methane) |
| Resolution | 1 ppm |
| Response time (T90) | ≤19 seconds |
| Cold / Hot Temperature Resistance | 22 ± 3 Ω |
| Radiation Area | 11 mm |
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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