Our company offers TeAn series gas alarm（ 0755-25887521wdh136）. With its' advanced technology, superior performance,other industry companies speak highly of our company and we are also praised by many users.The major varieties are as following:

              Wall-mounted: ES2000 combustible gas alarm(The type A is semiconductor; The type C is  catalytic combustion)

JB-QT-TON90AA   combustible gas alarm