This table compares the openaltimeter's features with other DLG electronics that I know about. I've tried to make it as fair as possible, but given that I designed the openaltimeter, you should probably take it with a pinch of salt! It was made in November 2010. If it's now after that, things might have moved on :-)
|Lost-model alarm||Yes-ish (*5)||N/A||N/A||N/A||N/A||N/A||Yes|
|Logging altimeter||Yes||No (*1)||Yes||Yes||No||Yes||N/A|
|In-situ altitude readout (*2)||Yes||Yes||No||No||No||No||N/A|
|Open-source plotting app||Yes||N/A||No||No||No||No||N/A|
|Size||31 x 16mm||20 x 15mm||20 x 16mm||40 x 23mm||28 x 16mm||23 x 15mm||19 x 12.5mm|
- (*1) The How-high can log a small number of altitude readings on user command, but doesn't log periodically.
- (*2) By "in-situ" I mean some way of reading out altitudes at the field without having to open up the glider. ZLog and the EagleTree altimeter do have numeric displays.
- (*3) Typical configuration with cables, without regulator.
- (*4) Converted to USD, correct on 17/10/2010.
- (*5) Yes-ish means you can use the output beeper to find the model when it's lost. It's loud enough to hear for around 20 feet, which can be helpful when you've landed in long grass etc. It's not loud enough to search out the model in a forest though.