Security threshold alarm

xiamen ZONEWU This LoRaWAN Hydrogen Cyanide (HCN) Gas Sensor is a monitoring device that can work wirelessly. It is equipped with specialized probes for measuring toxic gases and temperature and humidity, which can measure the concentration, temperature, and humidity of hydrogen cyanide in the surrounding air at any time. This sensor is particularly sensitive, accurate in measurement, and resistant to use. It also uses the universal LoRaWAN wireless transmission method, which can transmit data over long distances.