WSSFCEX-EVC is the Sigfox reader to read process data from Electronics Volume Corrector (EVC) with Ex d approval for installation in Zone 1, Zone 2 or Safe Zone, and it can connect to any EVC with Modbus RTU communication or Mercury proprietary protocol. It will automatically read those parameters from EVC: corrected volume, un-corrected volume, gas pressure, gas temperature... With Ultra-low-power design and smart firmware allow the Sigfox device can last up to 10 years with single 2 x AA batteries (depends on configuration). It can supports all regions of Sigfox network in over the World, RC1, RC2, RC3, RC4, RC5, RC6, RC7. Typical applications are monitoring of Gas metering skids, Gas metering system for Natural Gas, LNG, CNG...