M811B Digital Clock
$840.00 – $1,148.00Price range: $840.00 through $1,148.00
M811B Features
- 2 ¼” INTERNAL MOUNT
- SIX-DIGIT DISPLAY ON ALL 3 FUNCTIONS
- LOCAL TIME
- FLIGHT TIME
- ELAPSED TIME COUNTER
- SUNLIGHT READABLE DISPLAY
- NVIS GREEN A OPTION
- MEMORY BATTERY INCLUDED
- FAA-PMA APPROVED
Frequently Bought Together
-
skyBeacon
$2,199.00Original price was: $2,199.00.$1,979.00Current price is: $1,979.00. -
AV-30E (Experimental)
$1,849.00Original price was: $1,849.00.$1,664.00Current price is: $1,664.00. -
AV-30C (Certified)
$2,499.00Original price was: $2,499.00.$2,249.00Current price is: $2,249.00.
Why Pilots Trust AVIA Avionics
- Free Ground Shipping Over $399
Enjoy fast UPS, USPS, or DHL delivery on qualifying orders.
- Shipping Worldwide
We use DHL or UPS for worldwide shipments. Some shipments may require special processing.
- No Sales Tax
Sales tax only applies where required by law.
- 5 Star Service, White Glove
Strong customer service with fast response times.

Pilots Worldwide
Description
Part Number | Part Description | |
M811B-24 | MODEL 811B-24 LT 24 HR, FT, & ET CLOCK BLACK FACEPLATE (user selectable 12 or 24hr) M811B-1 811B-1 M811B-12 | |
M811B-24A | MODEL 811B-24A LT 24 HR, FT, & ET CLOCK GRAY FACEPLATE (user selectable 12 or 24hr) M811B-1A 811B-1A M811B-12A | |
M811B-24-NVG | MODEL 811B-24-NVG WITH NIGHT VISION COMPATIBILITY (GREEN A) | |
M811B-24-NVG-15 | MODEL 811B-24-NVG-15 WITH NIGHT VISION COMPATIBILITY WITH KW515-4F DISPLAYS (GREEN A) |
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- M811B Brochure/Manual (PDF)
- M811B Legacy Brochure/Manual (PDF)
- Electrical (PDF)
- Overall Dimensions (PDF)
- 811B Battery (811B-1-Batt)Â (PDF)
INSTALLATION ELIGIBILITY
- BAE Jetstream Models 3101 and 3201
- Beech Models 35, A35, B35, C35, D35, E35, F35, G35, H35, J35, K35, M35, N35, 35-33, and 35-A33
- British Aerospace Model BAE/Avro 146
- British Aerospace Model 125-700
- DeHavilland Models Dash-8 Series 100 (101,102,103)
- DeHavilland Models Dash-8 Series 300 (301, 311)
- Falcon Models 10, 900EX, and 2000
- Gates Learjet Models 24E, 24F, 25D, 25F, 35A, and 36A
- IAI Models 1125WW Astra and Astra SPX
- Mystere Falcon Models 50, 200, and 900
- Waco Model Classic WACO F5 and F5c
The 811-BATT-1 replacement batteries do not have PMA by themselves, they are part of the higher PMA assembly 811B clock.
Frequently Asked Questions
Q: My unit is not letting me reset FT and or not keeping time, what is wrong?
A: The memory battery is very low or dead and needs to be replaced. Battery should be replaced every two years. Replace at top of hour to have minutes close to 00:00.
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Q: I can't set the minutes on my clock, why not?
A: On the older 811B clocks, under serial # A40000, you can only set minutes by speeding up or pausing the seconds.
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Q: One of my digits is missing, how do I fix it?
A: The digits are field replaceable, and mounted in sockets. All 6 digits are the same and the part # is KW505F.
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