Mid-Continent CH93 Digital Clock & High Power Dual USB-A Charger – Part Number 6420093-4 – is a multifunction clock that displays volts, temperature, time, countdown time, and stopwatch. The unit fits into a standard, rear-mounted 2-¼” avionics panel cutout, and power is drawn from the aircraft’s main bus.

Mid-Continent CH93 Digital Clock & High Power USB Charger – Part Number 6420093-5 – is a multifunction clock that displays volts, temperature, time, countdown time, and stopwatch. The unit fits into a standard, rear-mounted 2-¼” avionics panel cutout, and power is drawn from the aircraft’s main bus.