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British Wildlife

8 issues per year 84 pages per issue Subscription only

British Wildlife is the leading natural history magazine in the UK, providing essential reading for both enthusiast and professional naturalists and wildlife conservationists. Published eight times a year, British Wildlife bridges the gap between popular writing and scientific literature through a combination of long-form articles, regular columns and reports, book reviews and letters.

Subscriptions from £40 per year

Conservation Land Management

4 issues per year 44 pages per issue Subscription only

Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.

Subscriptions from £22 per year
Wildlife Survey & Monitoring  Ornithology & Bird Ringing  Sound Recording  Headphones, Speakers & other Accessories  Speakers

Pettersson L60 Ultrasound Speaker

Manufacturer: Pettersson
Pettersson L60 Ultrasound Speaker
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  • Pettersson L60 Ultrasound Speaker In stock
Price: £115.83
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About this product

Compact speaker capable of playing back recorded calls between 2 and 60kHz from a bat detector. The sound produced by the speaker can then be picked up by any other type of detector--a great way to help demonstrate or teach use of bat detectors.

Suitable for use with any detector capable of playing back recorded real-time calls in High Frequency (HF output) or ultrasound, such as the D1000x. It can also be connected to a laptop to play back time expanded or real-time calls using software such as Batsound. (Please note that your laptop must have a high performance soundcard (sampling rate 192kHz) and time-expanded calls will need to be re-sampled).

The L60 uses a piezo-electric transducer which gives the unit a frequency range of 2kHz - 60kHz. The impedance of the L60 is greater than 50 ohm for frequencies up to 150kHz. For optimal performance an amplifier with an output impedance of 50 ohm or lower should be used to drive the L60. The L60 is a passive unit, i.e. it does not require a power supply or battery. The signal input of the L60 uses a common phono (RCA) jack.

A volume control makes it easy to adjust the signal to the desired level.



* Frequency Range: 2 - 60kHz
* Input Impedance: 500ohm
* Volume Control: Yes
* Input: phono (RCA) jack
* Dimensions: 105 x 60 x 37mm
* Weight: 70g


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