Features:
PCB parameter: 110.4 * 34 * 1.6mm (Blue)
Parameter with case: 122.8 * 51.4 * 29mm
Digital Tube working voltage: DC 5V
Operating Current: around 50mA

Function:
Exact timing: Adopts DS3231 chips, official said the accuracy comes to 2PPM.
Chime on every hour: User can set the hour time randomly and choose the ring you like.
Dual Alarm clock: Dual independent alarm clock, user can set the duration and ring.
Tempreture: It has the Centigrade and the Fahrenheit, which can be calibrated.
Intelligent light control: It can lower the brightness when gets dark, user can set the light control level (total 5 level) according to preferences.
12-hour/ 24-hour display
Display by circle: The Time, Tempreture, Date and Week display in circle. It only shows time
when you close the circle display.