Methane sensor is based on L oraWAN global free wireless radio frequency, powered by battery, long battery life, no wiring, easy construction. Compared with traditional 470M modulation technology, LoraWAN spread spectrum technology takes into account communication distance, anti-interference, low power consumption, ensures longer communication distance and stronger penetration ability ( commonly known as king through walls, which can penetrate 5 to 12 floors), more Suitable for applications with obstacles.