DRS-100B Diver Recall System


Diver Recall/Hydrophone (DRS-100B). Complete system including the LL-98 speaker (transducer), hand held mic, batteries and charger. The DRS-100B Diver Recall/Hydrophone systems is U.S. Navy Approved and used by Naval Special Warfare units, salvage divers, and recreational dive boats around the world. It is designed to alert all divers within range with either voice, a solid tone, or an intermittent tone. You can also feed sound into the water (e.g., music, pre-recorded announcements) via a line...

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  • Input Voltage 24 VDC
  • Input Current 7 amps maximum
  • Idle Current 75 mA
  • Audio Power (PEP) Recall & tone: 132 watts (in high power mode) Voice: Adjustable up to 132 watts
  • Frequency Reponse 500-4,000 Hz
  • Recall oscillation rate 5 Hz
  • Beam Pattern Omnidirectional
  • Transducer cable 25 fsw
  • Transducer Anodized aluminum; 9″ diameter, 6″ axial length
  • Fuse Type 6 amps, slow-blow (use slow-blow fuse only)
  • Low-battery LED Flashes at approximately 20 volts
  • Battery Type (2) 12-volt, 2.6 Ah maintenance free rechargeable cells in series
  • Battery Life 5 hours at 20% duty cycle (Recall/Tone mode) 3 hours nominal when using auxiliary input (medium volume)
  • Microphone type Push-to-talk, front panel (optional hand-held with PTT available)
  • Size (D x W x H ) 10.0″ x 14.0″ x 4.7″ (w/o cover) 6.5″ (with cover)
  • Weight: 6.8kg (15 lbs)

Delivery, Returns & Instore Collection

When will I receive my order?

International Delivery Times

Monday – Friday 3 – 5 Working Days

UK Mainland Delivery Times

Monday – Friday before 2pm Next Working Day
Monday – Friday after 2pm 2 Working Days
Saturday & Sunday 2 Working Days

UK Extended Areas Delivery Times

Monday – Sunday 3 – 5 Working Days

Please note delivery times may be extended during busy periods.

EU Areas

Please note that due to changes by HMRC, orders being shipped to EU countries will not be shipped on the same day as they are invoiced. EU Orders will now be shipped on the next working day. This only applies to E.U. orders. Domestic and Worldwide shipments remain the same.

Collect In Store?

When you go to the online checkout, you can opt to collect your items in store. We'll let you know when your order is ready for you to collect. Your order will normally be ready to collect the next working day.

Returns, refunds or exchanges?

You can return any item within 28 days of receipt for a refund, provided the item is unused, in its original packaging and in 'as new' condition.

Items will be refunded in full (less postage) if received within 28 days from the date of despatch.


We aim to deal with all returns and exchanges on the day they arrive, however please allow longer during peak periods.

You can return the item(s) by dropping them off in store or by returning the item(s) by post. We do not insist on a specific courier service for the return, so please use the most economical or appropriate method for returning the item(s).

Northern Diver (Int) Ltd
Appley Lane North
Appley Bridge

If an item becomes faulty after a period of time then please contact customer services (01257 254 444 or info@ndiver.com) prior to returning the item. We will either repair or replace the item at our discretion.

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Trade Customers

Northern Diver offers trade accounts to commercial organisations and to those who work in or around water. Please click here to register your details and find out if you qualify. Once your trade account has been confirmed you can view all trade prices and shop easily online when logged into your account. Please note when you are not logged in to your trade account retail prices are shown. If you have any queries please do not hesitate to contact us. Tel: +44 (0) 1257 25 44 44.