Does wireless ultrasound need an internet connection?

No, it does not. This point has to be stated precisely in both the contract and the marketing wording; getting it wrong leads to returns.

1. Technically: the probe contains its own Wi-Fi hotspot and the display device connects directly to the probe. Data does not pass through the internet or a cloud platform. This is a product characteristic and can be used as an acceptance criterion.

2. In marketing: avoid wording such as "cloud ultrasound", "networked diagnosis" or "remote real-time", which suggests dependence on a network or a remote diagnostic capability. The accurate description is "built-in hotspot, direct local connection".

3. In the contract: if the buyer requires operation without a network, add a line to the technical specification stating that the device can perform basic imaging and measurement without an external network. Written in, it gives you a basis at inspection.

4. In after-sales: software updates and remote support need a network, but that belongs to the service scope, not to the conditions of use. The instructions should say so clearly to avoid misunderstanding at the point of use.

Consistent wording reduces returns noticeably.