Portable wireless methane detection alarm

Portable wireless methane detection alarm, including binding post, first wire, casing, locking board, bolt, inserted bar, gas chamber housing, carrier catalysis component, plastic net board, second wire, wire leading -out terminal, first slot, extension board, second slot and pin, the casing openly is equipped with protruding ring, installs the circuit board in the casing, and the first wire of circuit board holds the carrier catalysis component outside wearing out the casing in the gas chamber housing, the utility model has the advantages that: external air chamber can convenient more gas change chamber. 便携式无线甲烷检测报警仪，包括接线端子、第导线、壳体、锁紧板、螺栓、插杆、气室外壳、载体催化元件、塑料网板、第二导线、导线引出端子、第插槽、支板、第二插槽和引脚，所述壳体正面设有凸起环，壳体内安装有线路板，线路板的第导线穿出壳体外，气室外壳内容纳载体催化元件；本实用新型的优点是：外置式气室，能方便的更换气室。