http://westfieldmx5.devocht.com/inde...=52&section=35

LM Technologies LM058 Bluetooth RS-232 is discontinued and can only find it 1 place for more then it's worth.

LM Technologies LM048 Bluetooth is the cheaper version that they recommend now. Same set up.

http://www.ebay.com/itm/LM-Technolog...ht_2358wt_1396