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M850B Digital Clock

Name: M850B Digital Clock
Brand: Davtron
SKU: 3798
Availability: InStock

Price range: $287.00 through $306.00

M850B Features

FAA APPROVED

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

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Model Type

Clear

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Description

Part Number	Part Description
M850B	MODEL 850B GMT, LT, FT, ET & CDT LED CLOCK, ILLUMINATING BUTTONS (BLACK FRONT MOUNT)
M850B-A	MODEL 850B-A WITH GRAY FACEPLATE
M850B-2	MODEL 850B-2 GMT, LT, FT, ET & CDT LED CLOCK, ILLUMINATING BUTTONS (BLACK INTERNAL MOUNT)
M850B-2A	MODEL 850B-2A WITH GRAY FACEPLATE

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
Count Down Timer: Settable from one second to 59 minutes and 59 seconds.

LED Displays: Readable in sunlight
Automatic Dimming
Battery Type: CR2032
Keep Alive Current: .00004 amps
Input Current: 0.2 Amps
Input Voltage: 14 to 28 Volts (backlight available 5V, 14V, or 28V lighting)
Black Face Plate: Engraved Nomenclature
Grey Face Plate: Silkscreened Nomenclature
Weight: 5 ounces
Warranty: 1 year

FAA Approved as an advanced time-keeping device equivalent and hence a replacement for the sweep-second-hand clocks of old. The unit is considered a replacement for clocks in Part 23, Class I and II IFR aircraft per advisory circular AC 20-94A.

Davtron NORSEE FAA Approved

Davtron Inc has determined that installation of all Davtron products are considered minor according to (FAR) 21.93(a). All of our units are similar in design, with their electrical, mounting size, and weight being similar. Even though we consider installation of Davtron products to be minor, it is up to the installing mechanic to determine if the installation is minor or major. For a minor, a maintenance log book entry is all that is required. The FAA has determined that the installation of replacement clocks in non-transport category airplanes is considered to be minor, therefore only a maintenance log book entry is required referencing letter 100S-GA-10-53 or NORSEE Approval from the FAA.