Chronometer/M811 Digital clock. Displays universal time, 12 or 24 hour, field adjustable, local time and flight time, 2 1/4 internal mount, 6 digit display. 811B-1
Condition NE — Condition disclosed — is shown up front on this listing, along with the exact price, current availability, and what certification paperwork ships with the part, so you can confirm fit and airworthiness before you buy. Full specifications and answers to common questions are below.
What does “New” condition mean?
Request certification documents (8130-3 / EASA Form 1 / C of C)
Description
The M811B Digital Clock is a multi-functional chronometer designed to operate under the most stringent operating conditions. It features three independent 6-digit solid state timing circuits: time, flight time, and elapsed time which can be controlled by the pilot. The incandescent display is readable in sunlight. Version 811B-1 has the ability to adjust local time to 12 hour or 24 hour setting.
NOTE: 28V install requires the 811-28 Dropping Resistor (sold separately).
- 2 ¼" internal mount
- Six-digit display on all 3 functions
- Local time 12 hour or 24 hour (user selectable)
- 24 hour flight time
- 24 hour elapsed time counter
- Sunlight readable display
- Memory battery included
Product Codes | |
|---|---|
| Mfr Part No: | 811B-1 |
| ECCN: | 7a994 |
| NSN: | 6645-01-074-2889 |
| PMA: | PQ1062NM |
| SCHEDULE B CODE: | 9104.00.0000 |
| SIN: | 334511 |
Weight: 7.5 oz Input current: 0.4 amps Input voltage: 14 v NVIS option: NVIS green A lighting Local time: 12-hour or 24-hour (user selectable) Flight time: 24 hour Elapsed time count up: 24 hour Battery type: 6 volt battery with 2-year operating life
Specifications
| Part number | 811B-1 |
|---|---|
| Manufacturer | Davtron |
| Condition | NE |
| Airworthiness | Condition disclosed |
| Country of origin | — |
| Lead time | days |
Frequently asked
Does the Chronometer/M811 Digital clock. Displays universal time, 12 or 24 hour, field adjustable, local time and flight time, 2 1/4 internal mount, 6 digit display. 811B-1 include certification paperwork?
This item is supplied as "Condition disclosed" rather than with full 8130-3 traceability — normal for some condition codes, and it does not mean the part is unusable, only that the paperwork profile differs. Check the listing for exactly what documentation is included, and request any available records before you purchase if your installation requires them.
What condition is this part?
This part is listed in condition NE — Condition disclosed. Condition codes describe how a part reached its current state (for example new, overhauled, serviceable, repaired, or as-removed) and directly affect what paperwork ships with it and how it should be installed. See the Glossary for the full definition of every condition code we use.
How fast does it ship?
This item is in stock and ships promptly, usually the same or next business day once your order and payment are confirmed. Exact transit time depends on your shipping method and destination and is shown at checkout. If your aircraft is grounded, AOG expedited handling is available on request — no phone tree required.
Can I return it?
You may return this item within 30 days of delivery if it is unopened, uninstalled, and in its original packaging. Items that have been installed, powered on, opened hazmat, or separated from an attached 8130-3 tag are non-returnable because their airworthiness status can no longer be confirmed once removed from the part. See our Returns policy for the full process.
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