It has an accurate clock (RTC) using an external crystal, it is equipped with a programmable alarm timer, the ability to auto-calibrate the touch keys in different environments, the use of capacitor power
Backlight of keys: red Number of keys: 3 touch keys
The maximum thickness of the top glass: 6 mm with a special 4-digit clock display.
Supply voltage: 180-250 v
Working temperature: 0-85 c