LoRaWAN wireless phosphine(PH3) sensor is an IoT wireless device designed specifically for monitoring phosphine gas. This device adopts LoRa spread spectrum modulation technology to achieve ultra long distance communication between terminals. Equipped with high-performance phosphine sensors and microprocessors, it has three major advantages: high detection accuracy, stable operation, and low energy consumption. Set upper and lower threshold values based on environmental conditions and proactively report abnormal data. This product is widely used in industrial safety, industrial parks, environmental protection and other scenarios.