Visual Alarm Device - Wanlin, a Chinese manufacturer and export supplier based in Shenzhen, China, builds Hong Kong wireless fire alarm and fire detection systems: LoRaWAN and RF 433 MHz wireless gateways with 4G or Wi-Fi uplink, battery-powered wireless call points and smoke and heat detectors, mains-powered alarm units with 2-hour UPS backup, IP67 enclosur···
Carbon Monoxide Alarm Bulk Order China manufacturer. Electrochemical CO sensor with UL 2034 EN 50291 CE certification. 4G wireless, smart home integrated, OEM/ODM, wholesale, global shipping to Australia. Contact: wanlinfirecontrol@163.com