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Chronometer/M850 Digital clock with 5V lighting. Displays universal time, local time and flight time, 24 hour Lt. 2 1/4 front mount, 2 button control. 850-5V-24

Chronometer/M850 Digital clock with 5V lighting. Displays universal time, local time and flight time, 24 hour Lt. 2 1/4 front mount, 2 button control.  850-5V-24
Out of Stock - On Backorder
Chronometer/M850 Digital clock with 5V lighting. Displays universal time, local time and flight time, 24 hour Lt. 2 1/4 front mount, 2 button control. 850-5V-24
CHRONOMETER/M850 Digital clock with 5V lighting. Displays universal time, local time and flight time, 24 hour LT. 2 1/4 front mount, 2 button control. 850-5V-24
M850 Digital Clock Chronometer | 2-1/4in, 5V Orange Incandescent, 24 Hr Battery

The M850 digital clock chronometer has a two-button control system, setting operations are identical for both alarm and time setting. The universal time is in a 24 hour format, while local time can be set to 12 or 24 hour format. The incandescent high-contrast display is readable in bright sunlight.

Version 850-5V-24 has orange incandescent 5V lighting, 24 hour battery, and N size alkaline battery memory. This is a 2-1/4 inch front panel mount instrument.


  • Greenwich Mean Time
  • Local Time
  • Flight Time
  • Flight Time Alarm
  • Elapsed Time
  • Count Up, Count Down, Alarm
  • Two button control system is natural and error free. Setting operations are identical for both alarm and time setting
  • Bright sunlight readable incandescent displays
  • Illuminated buttons and annunciators for night viewing
  • Flight time recorded in hours and minutes or in hours, tenths and hundredths
  • Serial time data output for remote use
  • Flight time alarm with external output
  • Elapsed time count down timer with alarm
  • A 4 Megahertz crystal precision time reference

Product Codes

Mfr Part No:850-5V-24
PMA:PQ1062NM


Weight: 4.4 ozDimensions: 2.375 x 2.46 x 2.375 inUniversal Time: 24 hour formatLocal Time: 12 hour or 24 hour option, user selectableElapsed Time Count Up: Starts in minutes and seconds, then hours and minutes, up to 99:59 hoursElapsed Time Countdown: Settable from one second to 59 minutes and 59 secondsElapsed Time Alarm: Activates at zero when counting downDisplay:  IncandescentKeep alive current: 0.004 Amps. 12 to 30 VoltsVoltage: 14 to 28 volts

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  • Stock: Out of Stock - On Backorder
  • Manufacturer Part #: 850-5V-24
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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 to all refunds (returns, cancellations, core-fee refunds) regardless of reason.
  • Return shipping: paid by buyer.
  • 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

All parts sold by American Aviation Parts are genuine factory products sourced through authorized distribution channels. Our authorization status varies by brand — for some brands we are a direct authorized dealer; for others we are an independent reseller through authorized distribution. Either way, the part you receive is the same factory product, with standard documentation available 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.

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