5 out of 5
Mid-Continent Instruments And Avionics 6420093-2 CH93 CHRONOS Digital Clock High Power USB Charger, Dual USB-A ports
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Pricing Note
Product Description
Manufacturer Part Number: 6420093-2
The CH93 series Digital Clocks are a multifunction clock which displays volts, temperature, time, countdown time, and stopwatch, and also comes available with multiple USB charging options. The CH93 installs in to a 2-1/4 inch avionics panel cutout and power is drawn from the aircraft main bus to power the unit. The white, seven-segment LED clock can displays several modes: local time, universal time, flight timers, elapsed and countdown timers and optionally, bus voltage and up to two temperature inputs. The daylight readable display features two methods of brightness controls: automatically using the internal photocell or manually with external dimming bus voltage. An internal battery maintains clock time and flight timer memory when the aircraft is not in use.
This CH93 digital clock (EDMO# 6420093-2) features Dual USB-A charging ports, local time, UTC/Zulu time, flight timer, countdown timer, stopwatch.
Features
Specifications
Weight:
5.0 oz
Dimensions:
2.39 x 2.39 x 1.15 in
Power Input:
10 - 32 VDC, 36 watts maximum
2.6A @14 VDC; 1.3A @ 28 VDC
USB Power Output:
5 - 0.25 VDC, 30 watts, 6 amp
Clock Accuracy:
±0.5 sec in 24 hours, ±3 min per year
Display Modes:
local time, UTC/Zulu time, flight timer, countdown timer, stopwatch
Altitude:
55,000 ft
Temperature:
-40°C to 70°C (operating)
USB Interface:
Single USB-A port
Mounting:
Rear-panel mounted, (4) #6 screws
Connector Kit:
MCIA P/N 8017287
Case:
Anodized aluminum black
Certification:
FAA TSO certified to C71
EASA ETSO certified to C71
RTCA DO-160G qualified
The CH93 series Digital Clocks are a multifunction clock which displays volts, temperature, time, countdown time, and stopwatch, and also comes available with multiple USB charging options. The CH93 installs in to a 2-1/4 inch avionics panel cutout and power is drawn from the aircraft main bus to power the unit. The white, seven-segment LED clock can displays several modes: local time, universal time, flight timers, elapsed and countdown timers and optionally, bus voltage and up to two temperature inputs. The daylight readable display features two methods of brightness controls: automatically using the internal photocell or manually with external dimming bus voltage. An internal battery maintains clock time and flight timer memory when the aircraft is not in use.
This CH93 digital clock (EDMO# 6420093-2) features Dual USB-A charging ports, local time, UTC/Zulu time, flight timer, countdown timer, stopwatch.
Features
- Six-digit, seven-segment LED clock
- Time modes: local time, UTC/Zulu time, flight timer, countdown timer, and stopwatch
- Clock settings include 12- or 24-hour mode and seconds On or Off
- External lighting control and built-in photocell for automatic dimming
- Internal, field-replaceable battery maintains time and Flight Timer memory, without aircraft power
- Compact, 2-inch size fits standard panel cutout
- 30 watts / 6 amps USB power
- Compatible with Apple, Android and other USB devices
- Protects itself and the charging device from short circuit, power surges and over-current potential
- The USB charging ports are designed as dedicated charging ports to industry-standard protocol per USB Battery Charging 1.2 Compliance plan. Some models also comply with the higher power requirements of USB Power Delivery 2.0 and 3.0
Specifications
Weight:
5.0 oz
Dimensions:
2.39 x 2.39 x 1.15 in
Power Input:
10 - 32 VDC, 36 watts maximum
2.6A @14 VDC; 1.3A @ 28 VDC
USB Power Output:
5 - 0.25 VDC, 30 watts, 6 amp
Clock Accuracy:
±0.5 sec in 24 hours, ±3 min per year
Display Modes:
local time, UTC/Zulu time, flight timer, countdown timer, stopwatch
Altitude:
55,000 ft
Temperature:
-40°C to 70°C (operating)
USB Interface:
Single USB-A port
Mounting:
Rear-panel mounted, (4) #6 screws
Connector Kit:
MCIA P/N 8017287
Case:
Anodized aluminum black
Certification:
FAA TSO certified to C71
EASA ETSO certified to C71
RTCA DO-160G qualified
Product Codes | |
|---|---|
| Mfr Part No: | 6420093-2 |
| ECCN: | 9a991 |
| PROAPP: | PT3738CE, PQ3738CE, OL2R061L |
| SCHEDULE B CODE: | 9104.00.0000 |
| TSO: | C71 |
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Return Policy
Following items are non-returnable:
Restocking fee 30%
Special Order Items
Lost or "Broken" Traceability
Items Sold as Non-Returnable
Software
Computer Based Products
Programmed Items
Time Sensitive Items
Outdated Items
Used Items
Damaged Items
Opened Items
Restocking fee 30%
Special Order Items
Lost or "Broken" Traceability
Items Sold as Non-Returnable
Software
Computer Based Products
Programmed Items
Time Sensitive Items
Outdated Items
Used Items
Damaged Items
Opened Items
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Our staff are available to answer any questions you may have about this item
Customer Reviews
By RW
Date: November 20, 2025
These seem to be made well, used on my cars wheel axel and fits perfect, a nice fit.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By RW
Date: November 20, 2025
These seem to be made well, used on my cars wheel axel and fits perfect, a nice fit.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Mario Reyes
Date: July 28, 2025
This tool looks excellent quality are made very well recommended
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Reliable7
Date: August 17, 2024
Impact rated and perfect for removing stubborn axel nuts. Set included the hard to find 33mm socket. I love this set.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Theron
Date: June 15, 2023
Needed bigger sockets went with this set instead of buying one at a time to expensive.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By Tim
Date: July 25, 2022
They work great. I like the convenience of having all of them in 1 kit. I had individual Snap On sockets, but my shop was burglarized amp; they were all stolen.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]