Mid-Continent Quartz Clock MD-90-1

• FAA PMA approved
• Precision quartz movement
• Compact 2 1/4-inch size – fits standard panel cutout
• Transient and reverse polarity protected
• Original equipment for many major aircraft manufacturers
• Low power consumption (3 mA)
• Continuously powered by aircraft battery
• One year limited warranty


• Voltage Input Range: 10 – 32 VDC
• Current Input: 3 mA max (without lighting)
• Accuracy: ±30 seconds in 24 hrs
• Dimensions: 2.5 x 2.5 x 3.2 inches max
• Weight: 0.5 lbs
• Temperature: –40°F to +180°F
• Altitude: –1,000 to +55,000 feet
• Humidity: 0 to 95% at 25°C
• Vibration: .02 in. dbl. ampl., 1.5g @ 5 to 50 Hz
• Certification: FAA PMA approved
• Mounting: Front or rear panel
• Connector: #6-32 Threaded Terminals