YJJ NE4-HCHO 4 Series Electrochemical HCHO Sensor 0-10ppm Formaldehyde Sensor for IAQ Detector

Product Description:

YJJ NE4-HCHO 4 Series Electrochemical HCHO Sensor 0-10ppm Formaldehyde Sensor for IAQ Detector

Features:

NE4-HCHO (commonly labeled as NE4-HCHO-S on the market), a Japanese Tōgen 4 series electrochemical formaldehyde sensor, featuring a three-electrode structure, suitable for industrial and IAQ (indoor air quality) monitoring applications.

Core parameters

| Model | NE4-HCHO (NE4-HCHO-S) |

| Detection Gas | HCHO Formaldehyde |

| Principle | Three-electrode electrochemistry |

| Range | 0 - 10 ppm |

| Maximum Overload | 50 ppm |

| Sensitivity (20℃) | 500 ± 150 nA/ppm (350 - 700 nA/ppm) |

| T90 Response Time | ≤ 120 s |

| Resolution | 0.02 ppm |

| Repeatability | ±5% FS |

| Zero Point Drift (0 - 40℃) | < 0.2 ppm |

| Annual Zero Point Drift | ≤ 0.05 ppm |

| Recommended Bias Voltage | 0 mV, no bias drive |

| Packaging | NE4 standard 4-pin package, Φ20 × 16.6mm |

| Operating Temperature | -20 ℃ ~ +50 ℃ |

| Humidity | 15 - 90% RH, no condensation |

| Pressure | 900 - 1100 hPa |

| Expected Lifespan | ≥ 1 year |

| Storage Conditions | Sealed storage at 0 - 20℃ |

Features & Application Scenarios

- Advantages: Large signal output, good zero-point stability, suitable for low-concentration formaldehyde monitoring;

- Applicable: Fixed-position formaldehyde transmitter, portable formaldehyde detector, indoor IAQ air quality equipment, building materials / decoration environment detection, workshop formaldehyde leakage monitoring;

- Note: Formaldehyde is an easily interfered gas. Alcohols and some VOCs may cause cross-interference.

Specifications: