Good tool for bluetooth low energy sensor development

This is a solid, basic tool that was able to pinpoint a problem in a bluetooth low energy communication link. Big help in determining that a BLE112 development board was working, and that the problem was in my data format. The write services in hex or ascii are key for troubleshooting. Used on a 2011 MacBook Air with integrated BT 4.0 where the built-in bluetooth software had not been discovering my low energy BT devices.
Thanks!

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