Product Description:

YJJ 4CO-AF Electrochemical Carbon Monoxide CO Sensor Portable / Fixed Gas Detection Instruments

Features:

I. Core Parameters (Standard Specifications) Table

Parameters Typical Value Explanation

Detected Gas CO (Carbon Monoxide) Specificity electrochemical detection

Detection Principle Triple-electrode electrochemistry Unbiased voltage, current-type output

Range 0~100 ppm (standard) Extended: 0~200 ppm

Overload ≤ 2000 ppm No damage within a short period

Sensitivity 200±50 nA/ppm Positive current signal

Resolution 0.5 ppm

Response Time (T90) ≤ 15 seconds

Zero Point Drift -1~+10 ppm (-20~50℃)

Repeatability <±2%/month

Load Resistance 5~30 Ω (recommended 10 Ω)

Operating Temperature -40℃ ~ +50℃

Operating Humidity 15%~95% RH (no condensation)

Size Φ20.15 × 16.4 mm 20mm standard industrial size

Weight Approximately 5g

Life Span Airborne > 24 months

Storage Sealed 0~20℃, 6 months

Guarantee 12 months

II. Key Advantages (Anti-interference)

Resistant to H₂ (Hydrogen) Interference: Less likely to give false alarms in H₂-containing environments (mining, garages, battery compartments)

Resistant to C₂H₄ (Ethylene), NH₃ (Ammonia) Interference: Suitable for chemical industries, cold storages, agriculture, and new energy scenarios

Low Temperature Stability: Can operate normally at -40℃, suitable for northern regions / cold storages

Low Power Consumption, Long Lifespan: Electrochemical without heating, preferred for portable devices

III. Typical Applications

Portable Gas Detector

Four-in-One / Single CO Detector (mining, chemical industries, municipal services)

Firefighters, underground operations, confined space safety

Fixed Industrial Monitoring

CO Monitoring in Boiler Rooms, Garages, Parking Lots

CO Leakage Alarm in Chemical, Synthesis Ammonia, Coking Plants

New Energy / Battery Safety

CO Monitoring in Lithium Battery Warehouses / Workshops (evaporation of electrolyte)

Environmental Protection / IAQ

Indoor Air Quality, Smoke Emission, Combustion Efficiency Monitoring

Special Scenarios

Cold Storage (resistant to NH₃), Landfill (resistant to H₂/S)

Risk Control of Vehicle Exhaust, Ship Cabins, Tunnel Ventilation

Specifications: