Device for a network node in a wireless mesh network, the device formed by a portable gossip module comprising an RF unit arranged for receiving and forwarding gossip network messages via the wireless mesh network according to a predetermined mesh network protocol; an adaptor arranged to establish an operational end-to-end connection with a handheld terminal, such as a smartphone, to exchange messages to and/or from the RF unit; and a controller connected to the RF unit and the adaptor for controlling the exchange of the interface messages.
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