H2S-A1 Hydrogen Sulphide Sensor

H2S Gas Sensor, Electrochemical, A-Series, 0–100 ppm H2S

Reliable H2S detection for safety-critical monitoring and process control.

Alphasense H2S-A1 sensors provide reliable hydrogen sulphide monitoring for industrial safety, portable and fixed gas detection, and process or biogas applications where fast response and stability are critical. The H2S-A1 provides standard 0–100 ppm H2S detection for portable gas analyzers and general industrial safety.
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Key Specifications:

 

Sensor Model

Target Gas

Package Size

Concentration Range

Sensitivity

T90 Response Time

Warranty

H2S-A1

Hydrogen Sulphide (H2S)

A-Series

0-100 ppm H2S

550 to 900 nA/ppm

<35s

24 months

 

Feature

Benefit

Standard portable H2S sensor

Ideal for 4‑gas and multi‑gas personal safety instruments.

0–100 ppm detection range

Covers typical workplace exposure limits and alarm thresholds.

Compact A‑Series footprint

Eases integration into existing portable detector designs.

Low zero and noise

Supports stable low‑level alarm setpoints with minimal false alarms

Fast response for rapid alarm triggering

Supports timely alarms in safety-critical environments.

Proven stability across temperature and humidity ranges

Delivers consistent performance in real-world conditions

Long operational lifetime

Helps reduce maintenance and replacement frequency for OEMs and end users.