Echo Meter Touch Bat Detector

371 reviews
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About this app

Using the Echo Meter Touch 2 plug-in modules, available from, Amazon, or through distributors worldwide, this app allows you to listen to, record, and automatically identify bats by their ultrasonic echolocation calls. The modules and this companion app reveal the silent and often times invisible world of bats, providing outdoor enthusiasts, citizen scientists, and researchers an affordable and informative way to interact with these important creatures.

There are two models available: Echo Meter Touch 2 (EMT2) costs $179 and is intended for nature enthusiasts and batting hobbyists and Echo Meter Touch 2 Pro costs $349 and is designed for bat professionals and features a higher quality microphone, adjustable gain, and higher sample rate.

The Echo Meter Touch Ultrasonic Modules sense ultrasonic signals, digitize the signal, and transmit the ultrasonic data to your the app on your Android device. The EMT2 offers exclusive features and unprecedented ease-of-use for a handheld bat detector.

EMT2 translates bat echolocations into frequencies that are audible to humans using two technologies. Wildlife Acoustics’ patented Real Time Expansion (RTE) allows you to listen to bats in real time with unparalleled fidelity. RTE maintains the timing and tonality of the original echolocations. Heterodyne (HET) listening via manual and automatic tuning is also available, for those accustomed to that way of hearing bats.

A real-time spectrogram shows the frequencies and timing of the echolocations. Scroll back in time and zoom in on previous "bat passes."

The Auto ID feature analyzes the echolocation calls and suggests the two most likely bat species matches in real time. This is the same technology used in our professional Kaleidoscope Pro Bat Auto Identification software. Currently, the app can identify 26 species in North America, 25 in Europe and 57 in the neotropics. For more information on Kaleidoscope and a full list of species, visit our website.

Activate triggered recording mode to automatically save bat passes to full spectrum .wav files for analysis on a computer or to view on your Android device. Or use manual record mode to control start and stop of recording. View the recording spectrogram and add voice or text notes. Listen to the recording using RTE, HET, or traditional Time Expansion Playback (playback at fractional speed to make the ultrasound audible).

View in satellite or road map view. View identified species codes directly on the map. Go to the recording's spectrogram from the map view. Transfer to your computer to view in Google Earth. Your Android device must have GPS capability or you must use a Bluetooth GPS receiver for this functionality.
*Continued use of GPS running in the background can dramatically decrease battery life.*

The EMT2 can transfer the .wav recordings to your computer over a Wi-Fi network or cabled through iTunes. Using Wi-Fi, the app bundles the recordings in a .zip folder and allows download by entering a URL in any web browser.

And import and open files that have been shared with you.

***Because bats vary their echolocation calls in response to a wide variety of needs, no automated identification can achieve 100% accuracy in species identification. Auto-ID, though largely accurate, should not be relied on as a basis for scientific research. Auto-ID is intended for use in analyzing recordings of single bats in free flight in low clutter environments. Auto-ID will not work well on recordings of roost emergence, multiple or captive bats, bats in high clutter environments, or bat social calls. Auto-ID does not include every possible bat for each of the covered regions.
Updated on
Aug 23, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
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371 reviews
Adam Paul Dioguardi
June 4, 2022
Does not work with pixel 6. Recognizes echo meter touch 2, pops up a notification when the module is plugged in warning that the app has not been given permissions (though it has), and then just sits with "waiting" in love mode. I can tap the screen but the ultrasonic microphone does not record anything. I'm happy to help debug this to help others also get it working! 3 stars because it works well with my oneplus 5... Thanks to the developers for your cool work!
3 people found this review helpful
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Tiger McGrath
April 24, 2022
I'm still learning, but don't find the online user guide to be very intuitive. For example, it tells me to tap an icon, but there's no icon where it says. Eventually, I find the icon, either in a different place or a different window. I think the problem is that it's not very linear. When I'm using the echo-meter, I need something pretty straight- forward. Later i can read more in-depth. So I guess I would like a separate 1,2,3 outline. But, that aside, I'm loving it! And still learning it
4 people found this review helpful
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July 5, 2020
There should be some sort of filtering system so that insects that constantly make high frequency sounds aren't constantly triggering the recordings. I've had to set my minimum trigger frequency to about 40-50 Khz because my phone's operating system couldn't process the continuous triggering; albeit, it was an older model phone. Because of this, I may have missed some actual bat calls. Also, the adapters are usually VERY finicky with how you plug them in (iPhone AND Android).
6 people found this review helpful
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What's new

+Pixel 6 phones will now work properly. Email support for instructions on updating the module's firmware if you are still having issues.
+Fixes crashes on some devices when pressing the "Return to real-time" button on the spectrogram.
+Fixes an issue that could result in only a partial recording path being shown when viewing the kml file in Google Earth.
+Several other crash fixes.