DIY KIT IN-12 Nixie Tubes Clock with Case, LED Backlight, Date & Temperature

Nixie Clock DIY Kit

Time · Date · Temperature · LED backlighting

Build a six-digit clock with original new-old-stock IN-12 tubes. The kit includes the enclosure, circuit boards, electronic components, and a CR2032 backup battery. Soldering and assembly are required.

9–12 V DC power adapter required — not included.

Assembled exampleWhat’s in the Kit

Six IN-12 Nixie tubes (new old stock).
• Main and display circuit boards, plus electronic components for assembly.
• Enclosure with the selected finish.
• CR2032 backup battery for the real-time clock.

Circuit Board OptionsDIY kit with white circuit boardsDIY kit with black circuit boardsDisplay & Controls

HH:MM:SS time display with selectable 12- or 24-hour format.
• Four display modes: time only, time and date, time and temperature, or time, date, and temperature.
• Quick date and temperature view with °C or °F temperature units.
• Three separator settings: flashing at 1 Hz, steady on, or off.
• Five manual backlight settings, including off, plus five sensor-based lighting modes with automatic dimming or switch-off options.
• Digit scrolling and slot-machine effects help prevent cathode poisoning.
• Three-button controls, time and temperature calibration, and settings saved in memory.
• Battery-backed real-time clock (RTC) retains the time during a power outage.
• Supports an optional external DS18B20 temperature sensor.

Technical SpecificationsDisplay6 × IN-12 tubes, 18 mm (0.71 in) digit heightClock dimensions195 × 60 × 50 mm (7.68 × 2.36 × 1.97 in)Enclosure dimensions220 × 85 × 85 mm (8.66 × 3.35 × 3.35 in)Power input9–12 V DC. Adapter not included.RTC backupCR2032 battery included

Available OptionsCircuit board colorWhite or blackLED backlight colorBlue, green, white, red, or yellowEnclosure finishNatural oak or black foil finishProduct Gallery

Assembled examples, finish options, and kit components.

Black enclosure, blue LED backlightBlack enclosure, red LED backlightBlack enclosure, green LED backlightNatural oak enclosure, blue LED backlightNatural oak enclosure, red LED backlightFront view with green LED backlightTemperature displayRear view and controlsAssembled electronics, front viewAssembled electronics, angled viewClose-up of IN-12 tubesBlack enclosure in a room settingRETRO-NIX / IN-12 NIXIE CLOCK DIY KIT