CO-H4X Carbon Monoxide Sensor

CO Gas Sensor, Electrochemical, H-Series, ppm-level CO monitoring in H2

High-performance CO detection for safety-critical monitoring and process control.

Alphasense CO-H4X sensors provide high-performance carbon monoxide detection for portable, fixed and miniature gas monitors across industrial safety, car park monitoring, combustion analysis and air-quality applications.

These H-Series sized CO sensors are designed into a compact package tailored for clip-on devices and handheld instruments where space is limited. Designed specifically to match Honeywell’s 1-series format, these sensors are available to support high-volume portable devices. The CO-H4X specifically is designed with a chemical filter to reduce cross-sensitivity to hydrogen. Its miniature, surface-mount–ready, and optimised-design is recommended for clip-on devices and handheld instruments requiring reduced H2.
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Key Specifications:

 

Sensor Model

Target Gas

Package Size

Concentration Range

Sensitivity

T90 Response Time

Warranty

CO-H4K

Carbon Monoxide (CO)

H-Series

0–1,000 ppm

18–45 nA/ppm

<25s

18 months

 

Feature

Benefit

Low hydrogen cross-sensitivity

Enhances CO accuracy in Honeywell-format instruments deployed in H2-rich environments.

Miniature, surface-mount–ready design

Simplifies assembly in compact clip-on and wearable monitors.

Optimised for portable safety

Supports OEMs targeting high-volume worker safety applications.