Yes. STCs are available for a wide range of aircraft makes and models. Visit the product page at mcico.com and use the aircraft manufacturer dropdown to view a list of applicable STCs for your specific aircraft.
Yes. All CHRONOS models mount in a standard 2¼-inch round panel cutout using four #6 screws, making installation straightforward and compatible with existing clock locations.
Yes. An internal field-replaceable battery maintains Time and Flight Timer memory when the aircraft is unpowered, so your settings are preserved across power cycles.
The CHRONOS offers two brightness control methods: automatic dimming using the unit's internal photocell, or manual control via an external dimming bus voltage. Dimming curves are fully programmable.
Yes. The CHRONOS USB ports are designed so that no data is transferred between the charger and any connected device, or between connected devices and aircraft systems, providing enhanced cybersecurity for the cockpit environment.
Most CHRONOS models accept 10–32 VDC, covering both 14-volt and 28-volt aircraft systems. The CH93MAX (6420093-5) requires 22–32 VDC and is intended for 28-volt systems.
The CHRONOS Series is certified to FAA TSO C71 and EASA ETSO C71, and is qualified to RTCA DO-160G for certified aircraft installations.
Both show dual USB-A. The 6420093-2 offers 5 modes (Local Time, UTC/Zulu Time, Flight Timer, Countdown Timer, and Stopwatch), while the 6420093-4 provides the full 8 modes including Volts, OAT, and Secondary Air Temp displays.
The CH93 (6420093-0) is a clock-only unit with no USB charging. The CH93HP models add USB-A charging at 15W per port in single-port (6420093-3) or dual-port (6420093-2 and 6420093-4) configurations. The CH93MAX (6420093-5) is the highest-output model, pairing a 60W USB-C PD port with a 15W USB-A port for up to 75W of total charging output.