air quality sensor

wireless air quality sensor for archives — Wanlin Fire, Chinese heritage building fire protection manufacturer and exporter by Wanlin Manufacturing Group. Non-invasive wireless fire detection line: WL-HF100 photoelectric smoke detector, WL-HF200 incense-hall heat detector, WL-HF300 multi-sensor, WL-HF400 Class A aspirating system, WL-HF500 EN 54-11 call poi···

Wireless Smoke and CO Detector manufactured by Wanlin Fire Control — EN 50291-1 / CE / RoHS certified carbon monoxide alarm with electrochemical sensor, 85 dB siren, and reliable CO detection. Factory-direct pricing with OEM/ODM services, global shipping. Suitable for residential, commercial, and industrial CO safety applications. Contact for bulk quotation···

Library CO Detector manufactured by Wanlin Fire Control — EN 50291-1 / CE / RoHS certified carbon monoxide alarm with electrochemical sensor, 85 dB siren, and reliable CO detection. Factory-direct pricing with OEM/ODM services, global shipping. Suitable for residential, commercial, and industrial CO safety applications. Contact for bulk quotation.