MacR6 data logger is a volume recorder dedicated to working with diaphragm gas meters. Registered parameters are transmitted to SCADA systems or PLUM eWebtel cloud-platform. Evc Gas Meter reacts on alarms situations as following: magnetic interruption, counterchange, battery change, low GSM range, cover opening*. Basic version is designed to work in Ex Zone 2. Versions for Zone 0 are also available. MacR6 has a capacity for up to 2 volume monitoring channels and the data is transmitted directly to a SCADA system thanks to the built-in GSM/GPRS 2G/3G modem. The estimated battery life of the device is 5 years with 1 data transmission per day. A fast configuration of the device made through an Android app.