Serialio's BlueSnap Standard is perfect.

I use the BlueSnap with a piece of field equipment called a PowerAIM 120 ( http://www.arraysolutions.com/Products/poweraim_120.htm ) which communicates with a laptop computer via RS-232.  
With Bluetooth already built-in to the laptop using the BlueSnap Standard  to get rid of the cable was a no-brainer. I’d definitely buy one again and have been referring business associates to your company to buy these for their own purposes.  Serialio's BlueSnap Standard is perfect.

Mark Mueller Mueller Broadcast Design