The Batlogger M2 From Elekon
The BatLogger M2 comes to us from Elekon AG, in Switzerland. It is a high-end, professional bat detector; and possesses many advanced features.
It is very versatile, and is very well adapted not only to active bat recording (during bat walks, transects, etc.) but also for nightly passive recording. I find this both an excellent and very welcomed feature. Whenever testing and using bat detectors over the years, I always use them in this fashion (overnight/unattended recording). So, I was very happy to discover this ability.
It feels lighter than it’s predecessor (The M) and is quite comfortable in the hand. This is due to the detector's ergonomic design.
Holding The M2 for long periods of time should present no issues, or cause fatigue for the majority of users: It features a unique shape, with an ergonomically designed handle.
The M2 is robustly built, and even features a built-in attachment point for a (user-supplied) lanyard.
I found The BatLogger M2 very easy to use.
The M2 uses a built-in, rechargeable, Li ion battery.
It is currently priced at right around $1,200 USD, directly from Elekon’s Online Shop.
It is also in stock at many Dealers throughout Europe (NHBS [in The British Isles], etc.)
The M2 uses a MicroSD card as it’s storage medium - Be sure to get a fast/good quality SD card for best results.
Front / User-facing Mic for recording comments
USB-C connector (under rubber SD card cover)
3.5mm headphone jack
Standard ¼” socket for tripod mounting
USB charging cables are provided
Live Recording Level Indicator
Recording Modes: Auto / Manual / Paused / Interval Mode
Live, adaptive Spectrogram Screen Display
Auto ID! 32 European bat species
Recent Recordings - displays Metadata for 20 recordings
Transect Mode - Way-points dynamically displayed in different colours
Sensors! Temp in ℃ / % r. H. / Lux / GNSS
Also height above sea level and velocity
In/Out Counting feature for bat roost surveys
- Bat Workers
The BatLogger M2 also possesses many additional features:
Ability to add voice comments during a recording session.
Ability to add a tag to a specific recording.
Ability to view and/or playback recordings directly from the device.
Ability to change the way it sorts through recordings: Name ascending, Name descending - Date ascending, Date descending.
The BatLogger M2 can display the metadata of each recording such as:
The Trigger frequency.
Profile used (Explore, Passive, etc.).
A graph with the spectrogram (spectrum data is averaged).
Some of the other data, accessible directly from The M2 includes:
The Log (Batrec.log file) - Displaying hardware/Mic events.
Ability to create custom Recording Profiles (this may also be done via the desktop app).
Ability to check/change sample rate (312.5kHz, 384kHz or 500kHz)
A feature-rich, Pro-level bat recorder, which will meet the needs of the most demanding Biologists.
Ability to create several customization's - Via device, and/or via the free desktop app (BatExplorer).
It is as sensitive, accurate, and as pleasurable to use as you might expect from a top-of-the-range bat detector.
It’s simple enough to use straight out of the box - Yet has enough advanced features to keep a user busy for many days - Just learning how to use them all!
The GPS/GNSS is extremely accurate, and the resulting .gpx files may be viewed with a myriad of Apps.
With a user-replaceable microphone module, this detector has the potential to last many years.
It froze on me once. I had to plug it into my laptop’s USB port, in order to power it down.
I occasionally find the BatExplorer software to be a little slow.
Next up, will be a full review of The BatLogger S2 - Passive/Static bat recorder also from Elekon.