• Cool glowing blue tube with 8 digits, PM dot and alarm on/off indicator
• Adjustable brightness and precision watch crystal
• Clear acrylic enclosure
• Selectable 12h or 24h display
• Assembly required
The Adafruit Ice Tube Clock Kit is designed with a retro Russian display tube.
Features:
• Alarm with volume adjust
• Keeps time with under 20ppm (0.0002%) error (< 2 seconds a day)
• Battery backup will let the clock keep the time for upto 2 weeks without power
• Displays day and date on button press
• 10 minute snooze
• Integrated boost converter so it can run off of standard DC wall adapters, works in any country regardless of mains power
• Great for desk or night table use, the clock measures 4.9" x 2.9" x 1.3" (12.5cm x 7.4cm x 3.3cm)
• Completely open source hardware and software
• Supplier code : 194