The future of bat detectors

Don’t get too excited, it’s only a mock up

The basic rule of technology is everyhting gets smaller, more capable and cheaper, though so far the application of that rule to bat detectors seems stalled at the £1000 mark for anything of serious use.

I’ve been using Ultramics for two years now to capture realtime full spectrum recordings at Myotis swarming sites. Up until now that’s required a netbook to run the software, not massively cumbersome but combine it with infrared video kit and a trek across moorland and you certainly feel the weight.

So it was good to hear from Ivano at Dodotronic that they’re working on an android compatible version of the Ultramic; the Ultradroid. A small ultrasound microphone combined with the computing power of a 7″ tablet? The potential to record, geolocate and identify bat calls in realtime all with a full colour easily visible display?

I’ve already bought a Google Nexus7 tablet, I’m ready.


Dodotronic UltraMic200k digital USB microphone


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

Dodotronic UltraMic200k

Dodotronic UltraMic200k

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.

Ultramic200k and Netbook

Ultramic200k and Netbook

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.