The DK120/90 is a battery operated underwater acoustic pulse generator (beacon / pinger) that is activated when the water switch is immersed in either fresh or salt water. Providing a minimum of 90 days of uninterrupted operation once activated, this beacon meets or exceeds all FAA requirements. This beacon can assist in location of CVR/FDR devices.
- Watertight aluminum case
- Capable of operation at depths of up to 20,000 feet
- Detectable at a range of 2000 to 4000 yards
- Sustained pressure up to 8700 psi
- Water switch actuation initiates beacon operation upon immersion in either fresh or salt water
- The battery used to power the DK120/90 will sustain beacon operation for a minimum of 90 days
- Acoustic output of 160 dB with an operating frequency of 37.5 kHz
- The water switch is part of a low current triggering circuit
- The generated pulses are approximately 10 ms in duration, and occur about once per 1 second
Product Codes | |
|---|---|
| Mfr Part No: | DK120-90 |
| ECCN: | 6A991 |
| END USE: | SEALDYNAMICS |
| ETSO: | C121b, C142a |
| PROAPP: | PT4200CE |
| SCHEDULE B CODE: | 9014.80.6000 |
| TSO: | C121b, C142a |
Hazmat charges may apply
Weight: Beacon - 6.7 oz Mount - 6 ozDimensions: 1.30in diameter x 3.92in lengthOperating Frequency: 37.5 kHz ± 1 kHzOperating Depth: Surface to 20,000 feet (6096 meters)Pulse Length: 9.0 milliseconds MinimumPulse Repetition Rate: Not less than 0.9 Pulse/Sec.Operating Life: 90 Days (Minimum)Battery Life In Beacon: 7 YearsAcoustic Output, Initial: 1060 dynes/cm Rms. pressure at 1 meter (160.5dB)Acoustic Output After 90 Days: 700 dynes/cm2 Rms. pressure at 1 meter (157.0dB)Operating Temperature Range: +28°F (-2.2°C) to +100°F (+37.8°C)Radiation Pattern: Rated output over 80 percent of sphereFAA & EASA Authorized: TSO-C121b / ETSO-C121b, TSO- C142a / ETSO-C142a
- Stock: Out of Stock
- Manufacturer Part #: DK120-90
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Returns & refund summary
- 30-day return window — with prior return authorization, unopened in original packaging.
- Restocking fee: 20% on unopened items, 30% on open-box items.
- Refund processing fee: 5.51% applies only to customer-remorse returns and customer-initiated cancellations. If a problem is our fault (our cancellation, unavailability, wrong item, confirmed defect, or shipping damage) your refund is 100% with no fees.
- Return shipping: paid by buyer on customer-remorse returns; we pay return shipping when the problem is our fault.
- Non-returnable categories: installed/used parts, special-order or rebuilt items, programmed items (incl. ELTs), batteries, AOG-priority orders, international orders.
Full terms: Return Policy.
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See our full Manufacturer Authorizations page for the current per-brand status.
Need traceability paperwork?
If your installation requires FAA Form 8130-3, manufacturer Certificate of Conformance, or other traceability documentation, please call 1-877-722-8727 or email [email protected] before placing the order so we can confirm what is available for this part.
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