Prices include VAT & UK mainland delivery, unless otherwise stated. To order from outside the UK mainland, please email us!
All orders come with our exclusive 60 day 100% satisfaction guarantee!


A static recorder for on-site deployment
The default passive full spectrum recorder?
Call me on 0333 9000 927 for a chat
The SM4BAT has my 60 day 100% Satisfaction Guarantee & extra year's warranty
For anything on a wildlife theme: Ask Martin!

Hi there,
What can I say about the Wildlife Acoustics SM4BAT?
If you're looking for a static full spectrum recorder to leave out on site, the Wildlife Acoustics SM4BAT, the Titley Ranger, the Pettersson D500X, the Elekon Batlogger C and the MINI BAT 2 are the ones to consider.
All units record bat calls very efficiently, but the main consideration is going to be deployment times. The Batlogger C can last for 5 nights with the single included battery or 10 nights with the optional additional battery. The D500X can last for 14 nights. The SM4BAT and Titley Ranger can last for over 30 nights. The MINI BAT 2 can last for 50 nights (AA model) or 125 nights (li-ion model).
I thoroughly recommend the SM4BAT, MINI BAT 2 or Titley Ranger for their long deployment times and ease of use.
With all except the Mini Bat 2 you'll also get a free bat calls book worth £35: either British Bat Calls by Jon Russ, Social Calls of the Bats of Britain and Ireland (first edition) by Neil Middleton et al, Social Calls of the Bats of Britain and Ireland (second edition) by Neil Middleton et al, Bats of Britain & Europe by Christian Dietz & Andreas Kiefer, Identifying Bats of Britain and Ireland by James Shipman, Is That a Bat? by Neil Middleton or a £35 voucher.
I want you to be 100% happy, so call me on 0333 9000 927 for advice.
Warm Regards,
Martin.
Free extra year's warranty with all bat detectors!
Warranty: 3 years (4 years from me)

Free bat book or voucher worth £35!
Compact, lightweight, single-channel bat detector and recorder.
Developed specifically for bat research, the SM4BAT recorders combine innovative design with a new low-power processor and easy-to-use scheduling features. Available in full-spectrum and zero-crossing models, the SM4BAT will make bat research simpler, faster, less costly and more reliable. The SM4BAT creates high-quality, full-spectrum recordings that can be easily converted to zero-crossing recordings using free Kaleidoscope conversion software.
Small, secure and weatherproof.
Designed around the footprint of 4 D-size batteries and made of rugged polycarbonate, the SM4BAT is less than half the weight and size of the old SM3BAT. The integrated mounting bracket and weatherproof security cover keep the unit safe and dry in the most punishing environments.
Long deployment times available.
The new, low-power microprocessor, combined with 4 D-size batteries, enable long deployment times. The SM4BAT has a recording run time of 300 to 500 hours depending on bat activity and other factors. See Specifications for details.
Easy to program.
To get you started quickly, the SM4BAT features a brand new, easy-to-use, Quick Start menu and Scheduler. Use built-in schedules, or customize them for your specific recording needs.
Available GPS accessory to set clock and location.
When deploying multiple recorders, use a single GPS accessory to automatically set the date, time and location settings of all recorders. The GPS accessory can also be attached to log the recording locations and path for mobile transects.
Recording Technology: Single-channel, 16-bit .wav
Sample Rates: Full-Spectrum, single-channel, 256kHz, 384kHz, 500kHz
Run-Time: 300-500 hours, depending on bat activity (NOTE: SM4BAT run times can vary by as much as 50% depending on the characteristics of specific brands and models of flash cards, the kind and quality of batteries used (alkaline versus rechargeable), temperature and configuration. We recommend SanDisk brand SDHC/SDXC cards.)
Power Options: Internal power using 4 D-size alkaline (included) or NiHM batteries; External power via optional SM3/SM4 Power Cable
Storage: 2 SDHC/SDXC flash card slots (Class 4 or greater)* More than 1 terabyte total capacity using 2 512GB SDXC cards* (I recommend using SanDisk SDHC/SDXC cards and I include 2 128GB SDXC cards in the complete bundle).
Height: 8.6"/21.8 cm; Width: 5.9"/ 15.0 cm; Depth: 2.8/7.1 cm; Weight: 1.4 lbs./.64kg without batteries, 2.7 lbs./1.2kg with batteries
Enclosure Material: Polycarbonate
Operating Temperature: -4°F to +122°F or -20°C to 50°C
Warranty: 3 years (4 years if you buy from me) - microphones 18 months
If you're not sure whether the SM4BAT is the one for you, just give me a call on 0333 9000 927 and I'll loan you mine to see if you like it.
Download SM4BAT User Guide - English - Spanish (Manual de usuario) - German (Bedienungsanleitung) - Chinese (用户指南) - French (Guide de l'utilisateur) - Japanese
The SM4BAT implements a serial communications interface in support of wind energy SCADA systems to report possible bat activity. With firmware version 1.3.3 and later of the SM3BAT or SM4BAT recorders produced with serial numbers greater than S4U06942 (shipped on or after March 12, 2019), the recorder responds to serial requests with information including cumulative number of bat passes and pulses detected as well as timestamp, voltage, temperature, and flash card capacity information.
New Products to protect your Song Meters and the SMM-U2 microphone from electrical surges!
o The Song Meter Surge Suppressor protects SM4/SM4BAT and SM3/SM3BAT recorders from power surges that could harm your recorders. This accessory should be used wherever microphones are mounted at elevation.
o If you’ve mounted your SM4BAT and SMM-U2 to a metrology tower, wind turbine or some mounting point several feet off the ground, the SMM-U2 Grounding Bracket protects the SMM-U2 microphone from electrical surges that could damage the microphone and recorder.



Warranty: 3 years (4 years from me)
Comment from a client:
"My bat detector microphone failed during a dawn survey and knew that I had a group of dusk surveys starting in two days time. I was not in a good place as I did not have a spare, but my equipment was less than a year old.
After my survey I contacted Martin by email and he called me back on the same day, a few hours later, after a quick nap. He told me he did not have a part in stock, but had already contacted the supplier on my behalf.
The next day I received a replacement part, free of charge and express delivered from Switzerland. I thought it was amazing, and could not believe it was resolved so quickly.
Due to Martin's exceptional service I was good to go with the surveys, and I really would like to thank Martin and Wildlife Countryside Services for making the dusk surveys happen."
David Kent

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