01. Apr 2026
The energy transition and the increasing injection of biogas and hydrogen are creating new challenges for gas grid operators regarding accurate billing. By adding the gFlow 1500 to our portfolio, Mems AG now offers the ultimate solution for precise, fiscal energy measurement in Switzerland.

In a pioneering collaboration, Mems AG and gAvilar have jointly certified their flagship products – the gasQS flonic and the gFlow 1500 – at the NMI . The result is a system solution approved according to OIML R140 Class B, which utilizes calorific value, density, and compressibility factors directly for legal gas energy billing.
The gFlow 1500 is far more than a conventional volume converter. It acts as the intelligent control center of your measuring station:
Maximum Accuracy: With an error of 0.2% across the entire pressure and temperature range, it sets new standards in metrology.
Real-Time Correction: In conjunction with our gasQS sensor, the gFlow enables online Z-correction instead of relying on static table values.
Connectivity: Thanks to the integrated LTE modem (4G/IoT) and Modbus RTU, your data is securely and transparently available at all times.
The gFlow 1500 offers maximum flexibility for your infrastructure, whether as a standalone system or seamlessly integrated with our gasQS technology . The device was specifically developed to meet the challenges of the energy transition, enabling precise monitoring of H2 admixtures in the gas grid . As your official partner in Switzerland, the Mems AG team provides expert support in the planning, integration, and commissioning of your measurement solution .
Optimize your grid infrastructure today. Contact us for a technical consultation!
