Dodotronic UltraMic200k digital USB microphone
Pro’s: Real time, full spectrum recording. Futureproof.
Cons: Needs netbook and software so not suitable for transects. Not suitable for all UK species
Although not strictly speaking a bat detector, combine the Dodotronic UltraMic200k with a netbook and you’ve got a light and portable mechanism for capturing full spectrum echolocation in realtime (which is where bat detectors are heading) and all for circa £500.
With a sample rate of 200k you’ll only record sound up to 100khz with the UltraMic200k so for some species you’re better off spending the extra on the UltraMic250k which captures sound to 125khz. Sound can be captured using BatSound, SeaWave or other software.
Sure it’s more suited to static surveys (I’ve been testing this one at swarming sites), and identification during data sifting is going to take longer; to say nothing of data storage issues associated with large files.
But, and this is a big but, I believe we’re on the cusp of the next stage in bat identification with automatic identification software just over the horizon. Couple one of these mics with a smartphone or tablet running the right software and you’ve got a powerful, affordable and accurate method of surveying and identifying bats in flight.
Link to the User Manual
Expect to see a Ultramic250k review soon.