Product News
What the official release says
- The article identifies methane absorption near 1653.7 nm as the basis for selective laser measurement.
- It discusses resistance to common interference as a reason gas operators evaluate TDLAS for household methane alarms.
- The article also describes Hanwei's laser, optical-path and sensor-module development chain.
Why it matters for overseas projects
The principle is useful when utilities compare household alarm technologies and assess false-alarm management, service workload and user confidence.
Visual evidence from the official release
These images were published with the cited Hanwei article. Captions explain what the image supports and where model-level confirmation is still required.
Fact and selection boundary
A sensing-principle article does not establish the performance, lifetime or certification of every alarm model. Use the relevant model page and supplied documentation for selection.
Source
This page is an English editorial summary prepared from the cited public Hanwei release. It is not a controlled product datasheet, certificate or word-for-word official translation.
Hanwei official laser methane sensing article (Chinese)