The wireless fixed gas detector GQB-200A6Li can simultaneously detect up to two different gases. The LoRa wireless communication technology is adopted to upload the information to the wireless gateway. The gateway end is connected to the PC through the RS485 interface or uploaded to the gas safety intelligent control system via 4G. This product does not require wiring and can be flexibly arranged for detection positions. Its standby time can last up to 6 months.