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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 £33 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 £26 per year
Wildlife Survey & Monitoring  Aquatic Survey & Monitoring  Hydrophones

H2d Hydrophone

  • Affordable, high-quality underwater microphone
  • Impressive sensitivity and low self-noise
  • Widely compatible with other audio gear
H2d Hydrophone
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Select product (6)
  • H2d Hydrophone 3.5mm Jack - 3m In stock
    £195.83
    #260428
  • H2d Hydrophone 3.5mm Jack - 9m In stock
    £216.67
    #260430
  • H2d Hydrophone 3.5mm Jack - 15m In stock
    £237.50
    #260429
  • H2d Hydrophone XLR - 3m In stock
    £200.00
    #260431
  • H2d Hydrophone XLR - 9m In stock
    £220.83
    #260432
  • H2d Hydrophone XLR - 15m In stock
    £241.67
    #260433
Selected product: £195.83
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About this product

The H2d hydrophone is an impressive piece of acoustic engineering, combining a robust design and high-quality components into an excellent product for those looking to make clear recordings of the underwater world. It is available with either a 3.5mm jack connection, compatible with a wide range of recording devices including those that require plug-in power (3.5mm jack only), or an XLR connection, suitable for use with any PA system or recording device that offers a balanced, phantom-powered, microphone input. The CS6 signal development board provides around 10dB improved sensitivity compared to its predecessor, and the design minimises distracting background noise in recordings. It has a small, streamlined shape that helps maintain it's position in the water column, and the robust stainless steel core with urethane rubber transducer make it eminently portable for fieldwork. 

The H2d is available with a 3m, 9m, or 15m cable. When producing underwater recordings, it is best to purchase a cable length that will allow for the hydrophone to be suspended as close to the centre of the water column as possible, as reverberations of the bottom or the surface will interfere with the recording.

Specification

3.5mm Version

  • Sensitivity: -172dB re: 1V/μPa (+/-  4dB  20Hz-4KHz)
  • Useful range: <10 Hz to >100KHz (not measured above 100KHz, approximate sensitivity @100KHz = -210dB re: 1V/μPa)
  • Polar Response: Omnidirectional (horizontal)
  • Operating depth: <80 meters 
  • Output impedance: 1.1 KΩ (typical)
  • Power: 0.7 mA (typical) 
  • Minimum PIP req.: 2V, 0.7mA
  • Dimensions: 25mm x 46mm
  • Mass: 105 grams 
  • Specific Gravity: 5.3

XLR Version

  • Sensitivity: -165dB re: 1V/μPa (+/-  4dB  20Hz-4KHz)
  • Useful range: <10 Hz to >100KHz (not measured above 100KHz, approximate sensitivity @100KHz = -210dB re: 1V/μPa)
  • Polar Response: Omnidirectional (horizontal)
  • Operating depth: <80 meters 
  • Output impedance: 6.8 KΩ (typical)
  • Power: 1.2 mA (typical) 
  • Dimensions: 25mm x 46mm
  • Mass: 105 grams 
  • Specific Gravity: 5.3          

Customer Reviews

  • Affordable, high-quality underwater microphone
  • Impressive sensitivity and low self-noise
  • Widely compatible with other audio gear
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