After 4 kits, this is my first SMT altimeter. The hardware and firmware are very similar to the MiniAltiDuo however it uses SMT componants so that the board is small enought to be used in model rocket.
The altimeter does not come as a kit because it uses SMT parts and those would be too hard to solder with an iron. It is soldered proffessionally in a reflow oven.
The altimeter is smaller and lighter
You can download the altimeter operating instructions here.
As of 10/08/2016 I have a new version smaller, with a stronger regulator that can operate with 1S or 2S batteries.