Relay switch with wsn

hello
i want to control the air condioni AC with a relay circuit to switch it on and off by WSN (wireless sensor network), i want to send a digital output to the node and then from the node to digital to analog conversion circuit then te analog output to the switch circuit which will be a relay based, so is this possible to do or not ? 

If you want to use digital output wirelessly I would reccomend using WLS instead of WSN nodes.  WSN nodes are more for sampling data, than for controlling things.
Here is a link to WLS-9163: http://sine.ni.com/nips/cds/view/p/lang/en/nid/205688
Regards,
Matt
Applications Engineer
National Instruments

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