Used in CO₂ alarms to effectively detect the carbon dioxide content in the air.
Carbon dioxide detectors are installed on-site, while gas controllers are mostly installed in central control rooms, duty rooms, and other locations. The detector transmits the detected carbon dioxide concentration to the gas controller in the form of electrical signals.
The gas controller then converts and displays the data numerically. When the carbon dioxide concentration exceeds the safe limit, the device will activate an audible and visual alarm to remind users to take safety measures.
The figure below shows a typical spectral curve. Specific parameters are as follows:
Substrate: Sapphire, monocrystalline silicon, etc.
Size: Customized as per customer requirements
Specifications: 4.26±0.12 μm, average transmittance >80%; 1.5–14 μm, transmittance <1%
