Military Amphibious Marine Tactical Equipment
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Brand: OTS

Diver Recall/Hydrophone (DRS-100B). Special, Unit Alone without Speaker

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-in connection located on the front panel. The DRS-100B also has a listen mode allowing the user to listen to marine and/or man-made noise. A record-out receptacle allows the user to connect the unit to a recorder.

The system is portable and comes standard with a high-quality hand-held microphone, transducer with 25' of cable, rechargeable batteries, battery charger, and main electronic unit. The DRS-100B is a must for all diving operations!


DRS-100B Unit Specifications

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
Transducer cable
25 fsw
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)
15 lbs


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