How do I choose between a diaphragm gas meter and an ultrasonic smart gas meter?

Diaphragm gas meters use a mechanical displacement structure and are a mature choice for residential, commercial, and small industrial applications. Goldcard offers aluminum and steel diaphragm gas meters from G1.6 up to G25, depending on the model.

Ultrasonic smart gas meters have no moving measuring components. They provide a compact structure, a wide measuring range, electronic volume conversion, intelligent diagnostics, and resistance to magnetic interference. They are more suitable for projects requiring advanced digital functions, broader flow coverage, and lower mechanical wear.

The final selection should consider the flow range, installation space, communication requirements, gas composition, billing method, and applicable local standards.