H2S-A41 Hydrogen Sulphide Sensor

H2S Gas Sensor, Electrochemical, A4-Series, 0–50 ppm H2S with ppb‑level resolution

Reliable gas detection for environmental monitoring and process control.

Alphasense H2S-A41 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-A41 is a four‑electrode, ppb‑capable H2S sensor for high‑resolution air quality, fence‑line and industrial safety monitoring.
  Request Quote   Buy Online   View Datasheet

Key Specifications:

 

Sensor Model

Target Gas

Package Size

Concentration Range

Sensitivity

T90 Response Time

Warranty

H2S-A41

Hydrogen Sulphide (H2S)

A4 4‑electrode

0–50 ppm

1400 to 2200 nA/ppm

<60s

24 months

 

Feature

Benefit

4-electrode A4 platform

Delivers low‑noise H2S measurements with excellent baseline stability. 4th electrode for baseline compensation.

High sensitivity for ppb detection

Low concentration measurements for environmental or perimeter monitoring

Ideal for air quality and fence‑line monitors

Supports long‑term low‑level monitoring near industrial sites.

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.