CH93 Multi-Function Digital Clock with USB Charging FAA TSO-Certified Avionics Panel Clock The CH93 series digital clock is more than just a timepiece, it's a versatile multi-function cockpit instrument built for today's demanding pilots and modern panels. Designed to fit a standard 2" rear-mounted avionics panel cutout, the CH93 combines precision timekeeping with powerful USB charging capability, system monitoring, and temperature sensing in a compact, lightweight package. Featuring a daylight-readable, six-digit LED display, the CH93 offers 8 operating modes, including Local Time, Zulu (UTC) Time, Flight Timer, Countdown Timer, Stopwatch, Bus Voltage, and up to two temperature inputs (probes sold separately). A field-replaceable internal battery retains time and flight data even when aircraft power is off. Optional dual USB-A and USB-C PD charging ports deliver up to 75W of combined output, supporting fast charging for tablets, smartphones, and EFBs. The unit is compliant with USB Battery Charging 1.2 and supports USB Power Delivery 2.0/3.0 for high-demand devices. Built-in surge protection ensures safe operation for both the unit and connected devices. With automatic and manual brightness controls, a robust anodized aluminum housing, and FAA TSO and EASA ETSO certification, the CH93 is the ultimate combination of reliability, safety, and utility for any cockpit. Key Features: 8-in-1 Instrument: Clock, Flight & Countdown Timers, Stopwatch, Volts, Dual Temp Inputs, UTC & Local Time Standard 2" Panel Mount Compact and lightweight (5 oz) Dual USB-A / USB-C Ports Up to 75W total output, compliant with USB PD 2.0/3.0 LED Display  Bright, 6-digit seven-segment readout with auto/manual dimming Power Input: 2232 VDC (84W max) Clock Accuracy: 0.5 sec/day, 3 min/year Altitude Certified: Up to 55,000 feet Operating Temp Range: -40C to +70C FAA TSO-C71 & EASA ETSO-C71 Certified Made in USA Wichita, Kansas 2-Year Limited Warranty Includes Connector Kit (MCIA P/N 8017287)