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OTS DRS-100B Diver Recall Hydrophone System

SKU: OTS-900097-000 Rate this product


Availability: Usually ships 7 weeks after receipt of order

Restrictions / Notifications

  • Reseller Restriction
    Due to vendor restrictions, this item cannot be sold to a reseller. If you are a reseller, please call us at 760-208-6500 or email for more details.
  • Vendor Export Restriction
    Due to vendor restriction this item is restricted to sales within the United States and cannot be exported.

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  • Boasts a listening mode for monitoring underwater biological or man-made sounds
  • Simple operation by lowering the transducer cable into the water, it puts all divers within range in instant communication
  • Voice communication, as well as solid or intermittent tones
  • U.S. Navy Approved


  • Nominal Range: 100 yards voice, 300 yards tone
  • Frequency Range: 500 - 4,000 Hz
  • Input Current/Voltage: 7 amps Max. / 24 VDC
  • Audio Power: 132 Watts (PEP)
  • Idle Current: 75 mA
  • Microphone: Hand-Held Push-to-Talk
  • Transducer: Lubell (anodized aluminum)
  • Battery Life: 5 hrs at 20% duty cycle (recall/tone) 3 hrs with auxiliary input
  • Battery Type: (2) 12V 2.6 amp hrs (RB-30)
  • Low Battery Alarm: LED flashes at approx. 20 volts
  • Housing Dimensions: 6.5 in. H × 14 in. W × 10.6 in. D (16.5 cm x 35.6 cm x 26.9 cm)
  • Weight: 15 lbs (6.8 kg)

DRS-100B Diver Recall Hydrophone System - P/N: OTS-900097-000 Includes:

  • (1) Hand-Held Microphone - P/N: OTS-910041-000
  • (2) 12V Rechargeable Batteries - P/N: OTS-900041-000
  • (1) Battery Charger - P/N: OTS-910363-000
  • (1) Transducer with 25 ft. Cable - P/N: OTS-900189-000

The OTS DRS-100B Diver Recall Hydrophone System is U.S. Navy approved and used by Special Warfare units around the world. The DRS-100B is a dive supervisor's best friend, allowing him to recall free-swimming divers. It will alert all divers within in range with either voice, solid or intermittent tones. The DRS-100B Diver Recall Hydrophone System also offers a listening mode which is great to hear marine biological and/or man-made noise.

This OTS System comes complete with a high-quality hand-held microphone, transducer with a 25 feet of cable, rechargeable batteries, battery charger and main electronic unit. The DRS-100B is a must for all diving operations! All you have to do is lower the transducer cable into the water and all divers within range and same frequency will be able to communicate.


Additional Information

Search Weight 75
Brand OTS
Clearance Item No
Communication Mode No
Video No

Product FAQ's

Ask a Question

  • Can an MP3 player be attached to the OTS DRS-100B Diver Recall System??
    Yes, the Diver Recall System has a line-in connection that can be used to feed music, pre-recorded announcements, or other audio to the diver. The line-in connection is a RCA jack.
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