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M850 Digital Clock

Price range: $157.00 through $840.00

M850 Features

2 ¼” FRONT MOUNT
TWO BUTTON CONTROL SYSTEM
GREENWICH MEAN TIME
LOCAL TIME
FLIGHT TIME WITH ALARM
ELAPSED TIME WITH COUNTDOWN TIMER
ELAPSED TIME ALARM
OPTION AUDIO ALARM
BRIGHT SUNLIGHT READABLE DISPLAY
AUTOMATIC DIMMING
ILLUMINATED BUTTONS AND ANNUNCIATORS
NVIS GREEN A OPTION
KEEP ALIVE BATTERY OPTION
FAA-PMA APPROVED

Frequently Bought Together

Model Type

Clear

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Description

Part Number	Part Description
M850-5V	MODEL 850-5V GMT, LT, FT, & ET CLOCK 5V ILLUMINATING BUTTONS (FRONT MOUNT)
M850A-5V	MODEL 850-5V-WITH GREY FACEPLATE
M850-5V-NVG	MODEL 850-5V WITH NIGHT VISION COMPATIBILITY (GREEN A)
M850-2-5V-NVG	MODEL 850-5V INTERNAL MOUNT WITH NIGHT VISION COMPATIBILITY (GREEN A)
M850-14V	MODEL 850-14V GMT, LT, FT, & ET CLOCK 14V ILLUMINATING BUTTONS (FRONT MOUNT)
M850A-14V	MODEL 850-14V WITH GRAY FACEPLATE
M850-14V-NVG	MODEL 850-14V WITH NIGHT VISION COMPATIBILITY (GREEN A)
M850A-14V-NVG	MODEL 850A-14V-NVG WITH GRAY FACEPLATE
M850-28V	MODEL 850-28V GMT, LT, FT, & ET CLOCK 28V ILLUMINATING BUTTONS (FRONT MOUNT)
M850A-28V	MODEL 850-28V WITH GRAY FACEPLATE
M850-28V-NVG	MODEL 850-28V WITH NIGHT VISION COMPATIBILITY (GREEN A)
M850A-28V-NVG	MODEL 850A-28V-NVG WITH GRAY FACEPLATE
M850-2-28V-NVG	MODEL 850-28V INTERNAL MOUNT WITH NIGHT VISION COMPATIBILITY (GREEN A)
M800R-5V	*MODEL 800R-5V REMOTE UNIT 5V LIGHTING FOR MODEL 850 & 877
M800R-14V	*MODEL 800R-14V REMOTE UNIT 14V LIGHTING FOR MODEL 850 & 877
M800R-28V	*MODEL 800R-28V REMOTE UNIT 28V LIGHTING FOR MODEL 850 & 877
M800R-28V-NVG	*MODEL 800R-28V WITH NIGHT VISION LIGHTING GREEN A
SON-ALERT-SC648	AUDIO ALARM FOR MODELS 800, 803, 850 & 877

Greenwich Mean Time: 24 hour format
Local Time: 12 hour or 24 hour option
Flight Time: Records in hours and minutes, up to 99:59, 99.99 hour option
Flight Time Alarm: Full set range flight time
Elapsed Time Count Up: Starts in minutes and seconds, then hours and minutes, up to 99:59 hours
Elapsed Time Countdown: Settable from one second to 59 minutes and 59 seconds
Elapsed Time Alarm: Activates at zero when counting down

Incandescent Displays: Readable in sunlight
Automatic Dimming
Battery Type: N size alkaline Model 850
Battery Type: AA size alkaline Model 877
Keep Alive Current: .00004 amps
Input Current: 0.2 Amps
Input Voltage: 14 to 28 Volts (backlight available 5V, 14V, or 28V lighting - must specify when ordering)
NVIS Option: NVIS Green A lighting
Black Face Plate: Engraved Nomenclature
Grey Face Plate: Silkscreened Nomenclature
Weight: 5 ounces
Warranty: 1 year

INSTALLATION ELIGIBILITY

Israel Aircraft Industries Model 1125 Astra and Galaxy

Frequently Asked Questions

Q: My unit is not coming on and it is getting power, what is wrong?

A: Try removing N-size memory battery on back of unit when powered off. Wait a few minutes and power up unit, see if now works. A low or dead battery can cause clock to not work.

Q: My clock is not keeping time, why not?

A: Replace N-size memory battery on back of unit.

Q: When trying to set time, FT, or ET, more than the flashing digit is changing, what is wrong?

A: The clock IC has failed and needs to be replaced.

Q: One of my digits is missing, how do I fix it?

A: The digits are field replaceable, and mounted in sockets. All 4 digits are KW115G.