YJJ 7HYT AE702-404 Hydrogen Electrochemical Sensor for Fuel Cell & Hydrogen Workshop Monitoring

Product Description:

YJJ 7HYT AE702-404 Hydrogen Electrochemical Sensor for Fuel Cell & Hydrogen Workshop Monitoring

Features:

Specification

Model: 7HYT Electrochemical Hydrogen Sensor

Target Gas**: Hydrogen (H₂)

Principle**: 3-electrode Electrochemical, 7-series housing

- Measurement Range: 0 ~ 1000 ppm H₂

- Max Overload: 2000 ppm H₂

- Sensitivity: 0.03 ± 0.01 μA/ppm

- T90 Response Time: <85 s

- Bias Voltage: 0V, no bias required

- Recommended Load Resistor: 10 Ω

- Resolution: 2 ppm typical (electronics dependent)

- Repeatability: 2% of signal

- Baseline Offset (clean air @20℃): 0 ~ -25 ppm H₂ equivalent

- Zero Shift (20~40℃): < -35 ppm H₂ equivalent

- Linearity: Linear

- Built-in Filter: Reduce CO cross interference

Environmental Spec:

Operating Temperature: -20℃ ~ +50℃

Humidity: 15% ~ 90% RH (non-condensing)

Pressure: Atmospheric ±10%

Storage Temp: 0℃ ~ 20℃

Life & Mechanical:

Expected Service Life: ≥24 months in air

Warranty: 6 months

Package: Standard 7-series 7-pin housing

Weight: 12 g

Housing: Polycarbonate cap, ABS body, mounting orientation independent

Features:

Standard 7-series package, compatible with other City 7-series sensors for OEM integration; built-in CO filter to minimize cross interference; 0V bias for simple circuit design; low long-term drift <2% signal/month; compact size for portable & fixed gas detector.

Applications:

Hydrogen leak detection, fuel cell monitoring, hydrogen production workshop, energy storage hydrogen cabin, laboratory H₂ monitoring, portable H₂ alarm, fixed industrial hydrogen safety detector.

Specifications: