WSSFC-G4 is a Sigfox-ready electrochemical-type gas sensor with a high sensitivity to low concentrations of detected gas, high selectivity, and a stable baseline. The device supports different types of gas such as CO, NO, NO₂, H₂S, NH₃, O₂, O₃, SO₂, Cl₂, HCHO... With ultra-low-power design and smart firmware allow the complete Wireless and Sensor package run on 2 x AA battery 1.5V for 5-10 years (depend on configuration). It supports all regions of the Sigfox network over the World RC1, RC2, RC3, RC4, RC5, RC6, and RC7. Typical Applications are Gas, toxic gas detecting, air quality monitoring for facility, building, pump station, HVAC...