Menu
Your Cart

Altitude Encoder/1/8-27 NPT static port inlet, 1 ea Icao pressure altitude gray code output, Icao Parallel Code,2 ea RS232 serial altitude data outputs, operating altitude range -1000 to +35,000 feet, 10' serial resolution, 42 month warranty. The serial d

Altitude Encoder/1/8-27 NPT static port inlet, 1 ea Icao pressure altitude gray code output, Icao Parallel Code,2 ea RS232 serial altitude data outputs, operating altitude range -1000 to +35,000 feet, 10' serial resolution, 42 month warranty. The serial d
Altitude Encoder/1/8-27 NPT static port inlet, 1 ea Icao pressure altitude gray code output, Icao Parallel Code,2 ea RS232 serial altitude data outputs, operating altitude range -1000 to +35,000 feet, 10' serial resolution, 42 month warranty. The serial d
ALTITUDE ENCODER/1/8-27 NPT static port inlet, 1 ea ICAO pressure altitude gray code output, ICAO Parallel Code,2 ea RS232 serial altitude data outputs, operating altitude range -1000 to +35,000 feet, 10' serial resolution, 42 month warranty. The serial data protocol can provide pressure altitude data to ADS-B, GPS, Auto-Pilots, Transponders and other navigation devices. Six (6) serial data protocols are available. SSD120-35C-RS232
SSD120-35C Altitude Encoder

The SSD120-35C-RS232 (SSD120-35C) is a rugged and reliable altitude digitizer for applications where size, weight, and economy are critical. This encoder accurately measures air pressure and converts this measurement into the ICAO parallel data as set forth in the International Standard for Pressure Altitude Transmission.


Incorporating one ICAO gray code port and two RS232 serial altitude data outputs, this encoder is a simple and robust addition to any avionics installation requiring pressure altitude information for multiple aircraft systems. The serial data protocol is commonly used to provide pressure altitude data to ADS-B, GPS, auto-pilots, transponders and other navigation devices. Six serial data protocols are available. Data protocol is selected through internal shunts or via software set-up. Installation hardware includes: quick release mounting tray, mating electrical connector and backshell, 1/8-27NPT to tube and plug, and installation manual.


  • Small, light, and low power consumption
  • 1/8-27NPT static port inlet
  • ADS-B Compliant
  • One ICAO pressure altitude gray code output
  • Two RS232 serial altitude data outputs
  • Resolution of the serial altitude data may be set to 100 feet or 10 feet through internal shunts
  • Altitude range from -1,000 to 35,000 feet
  • FAA TSO-C88a and ETSO-C88a approved
  • Tested and conforms to MIL-STD-704E and RTCA DO-160E

AI disclosure: this description was generated with AI assistance from this product's own listing data.


Product Codes

Mfr Part No:SSD120-35C-RS232
ECCN:7A994
PROAPP:PT0758NM
SCHEDULE B CODE:9014.20.6000
TSO:C88a


Weight: 4.3 oz (5.3 oz with tray and knob)Operating Voltage: 12 - 30 VDCOperating Current: 0.25 amps @14 VDC, 0.27 amps @28 VDCOperating Temperature: -20°C to 55°C (-4°F to 158°F)Storage Temperature: -65°C to 85°C (-85°F to 185°F)Warm-up Time: 0 sec @20°C (68°F)Operating Altitude: 1,000 to 35,000 ftCertifications: FAA TSO C88a, EASA TSO C88a, RTCA DO-178 software, RTCA-DO-160E D1BAB[(SM (UF)]XXXXXXZBBB(BC)TTBXXXAX

Write a review

Note: HTML is not translated!
Bad Good
Captcha
  • Stock: Warehouse
  • Manufacturer Part #: SSD120-35C-RS232
$328.83

Aircraft Fitment Finder

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.

Authenticity & authorization

We source products from manufacturers, authorized distributors, and established aviation suppliers as applicable. We are an independent reseller; we do not claim direct dealer or authorized-representative status for any brand. Documentation, source, and warranty eligibility vary by product and are confirmed on request.

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.

Shipping

Standard ground, expedited, and AOG shipping options are available at checkout. Full shipping-cost tiers and timelines are published on our Delivery Information page.