Song Meter SM4BAT-FS Bat Recorder with SMM-U1 Microphone and 3m Cable

£995.71 Ex. VAT
In stock

Compact, lightweight Bat Recorder that records in 16-bit full spectrum for 45 nights on one set of batteries.


If you need to leave your bat recorder in the field for a month at a time, without the need to change the batteries, then the Song Meter SM4BAT-FS is ideal. Indeed the batteries last for up to 45 nights, thanks to a low-power microprocessor, and deployment times can be extended with external power sources.

For those of you that are au fait with older models, the SM4BAT-FS combines many of the features of the powerful SM3BAT with the size and compactness of the popular SM2BAT.

Key Features:

  • Lightweight, rugged and compact
  • High-quality Full Spectrum recordings
  • Designed for static monitoring at remote sites
  • Features an integrated mounting bracket
  • Weatherproof lockable security cover
  • Intelligent recording triggers and noise file scrubber - never miss a bat!
  • Optional 16 kHz high pass filter to reduce lower frequency noise
  • Built-in programs tailored for bat research
  • Very simple to create customised schedules
  • Effortless and affordable synchronisation of multiple units, using a single GPS accessory
  • GPS accessory also records the unit’s travel path
  • Remote status logging for wind farm operators*

This particular unit is sold here together with the SMM-U1 microphone and 3 m cable. If you need zero-crossing recordings this can be achieved with the Kaleidoscope Lite.

*This is only available on recorders with serial numbers greater than S4U06942 (manufactured from around March 2019) and running firmware 2.2.1. or later. You will also need an RS-232 data cable to connect the Song Meter to a data logger or other external system.

The new upgrade implements a serial communications interface to wind energy SCADA systems. The SM4-FS responds to serial requests with information including:

  • Cumulative number of bat passes and pulses detected
  • Timestamp
  • Voltage
  • Temperature
  • Flashcard capacity


Technical Specifications

Dimensions (mm; h x w x d): 218 x 150 x 71
Weight (without batteries; g): 730
Weight (with batteries; g): 1300
Enclosure Material: polycarbonate
Enclosure Environmental Protection: fully weatherproof
Operating Temperature: -4° to 185° F / -20°C to 85°C

Recording Technology:

16-bit PCM .wav files or compressed .w4v files

Sample Rates:

Full-Spectrum, single-channel;
256kHz, 384kHz, 500kHz


4x D-size alkaline or rechargeable NiHM batteries
External power via optional SM3/SM4 Power Cable


2 SDHC/SDXC flash card slots (class 4 or greater). 
>1TB total capacity using two 512GB SDXC cards
Compression is available to increase storage capacity


Warranty: 3 Years (excluding microphones, batteries, and accessories)

We now offer FREE UK SHIPPING for online orders over £30 to the UK mainland (under 30kg), including service & repair items. For information on qualifying requirements for free shipping, please see our delivery page.

We aim for next working day delivery on all UK mainland orders received before 3.00pm. Where products need to be made to order or are not a regular stock item, or during busy times of year, despatch times may be longer.

If your order is urgent please call us on 01451 833 181. There is usually an additional charge for timed delivery.

We will always use a reputable courier company and require a signature on delivery. Smaller items are usually shipped using Royal Mail or DPD, and larger items are sent using TNT or Tuffnells. Palletised deliveries are with Pallex.

We will email you shipping confirmation after your order has been despatched. Where available, you will also receive tracking notification by email or text. If you need to track your parcel urgently then please contact us.

We can deliver to anywhere in the world, but you may need to contact us for a quote.

If your order doesn’t qualify for free shipping then UK mainland delivery starts at £6.67 ex VAT, while Highlands and Islands delivery starts at £12.50. You can calculate shipping costs using the basket.

For full delivery information please click here.

Important Information About Backorders

At Wildcare there are times when items are only available on a backorder basis, either due to high demand or if the item is a special order item. We refer to these as ‘backorder items.

Backorder items are clearly listed on our website as ‘Order To Reserve Stock (Backorder)’. Items that are in stock and ready to be shipped immediately are listed as ‘In Stock’.

When you place an order for a back order item or an order that includes back order items, a member of our team will be in contact within 48 hours of your order to confirm the lead time for delivery. For any queries before then, please call us on: 01451 833 181

Avoiding Disappointment

We cannot guarantee that a backordered item will come back into stock or be delivered for a specific date, however we will always do our best to keep you informed and updated.

If your back order is urgent or required within a specific time frame we suggest to call us on 01451 833 181 so we can keep your requirements in mind throughout the waiting period.


If you receive damaged items or the wrong goods, please let us know straight away so that we can arrange for them to be returned to us and replaced as quickly as possible.

You will need to obtain a Returns Number  - please call us on 01451 833 181 or email

Please return goods, WITH THE RETURNS NUMBER MARKED ON THE PARCEL to: Wildcare, Eastgate House, Moreton Road, Longborough, GL56 0QJ

We may ask for a photograph any damaged items before we agree to replace them.

Please click here to view our full returns policy.