The package includes:
1. Two boards
2. All components for assembly
3. Four IN-4 nixie tubes
4. Assembly diagram
Clock are made on IN-4
backlight can be switched off by removing the jumper
Clock display: time, date, temperature
Four modes of operation (01, 02, 03, 04)
mode - 01 (displays only the time)
mode - 02 (alternately displayed time and date)
mode - 03 (alternately displayed time and temperature)
mode - 04 (alternately displays the time, date, temperature)
Modes are switched by pressing short button 3
to set the time, date - hold button 3
supply: standard 12V / 0.5A, (1A or more) DC (Power supply not included) central pin-positive 2.1*5.5 connector
Battery backed-up, DS1307 RTC (real time clock) will stay right on time, set the time once and forget it
If you have any questions happy to answer
All you need to do is solder all parts and you get a clock such as in the photo.
Fast delivery by airmail
Video
https://www.youtube.com/watch?v=w6n1o9JehJQ