Best Real Time Clock Chip Arduinos

Abnana DIY Large Screen 6 Digit Two-Color LED Clock Kit Touch Control w Temp/Date/Week (blue)

Adopt real time clock chip, data will not lose when power off with the backup battery(not included)..
Sounds control function: you can wake it up by clapping your hands or knocking on the table..
Full-color LED changes colors automatically..

【Maintain Automobile by the Real Time Data】This Car Voltage Meter Clock Thermometer is a multifunctional clock with 4 in 1 function, including time, thermometer, voltmeter and backlight.It can inspect your automobile at real time effectively, there is alarm lamp to remind you to avoid icing may cause damage to your car as temperature lower freezing point. There are alarm voice and lamp to remind you to cheeking the storage battery as the voltage is excessive to too low. You can maintain your aut.
【Special function : 】Time display (12 / 24hour), date display, dual temperature display, alarm clock, snooze function, frost alarm function, automobile storage battery voltage indicator function, LED backlight.
【Blue / Green of backlight】Two colors blue / green of backlight for choice when the clock is powered by car cigarette lighter, there would be no backlight when it is powered by backup batteries..
【Alert Car Battery's Voltage】Alert you to your car battery's voltage and its alarm sensor notifies you of excessive or under normal voltage operations.
【Real Time Display】When it connects with car, its back light is light up and all the contents (including the time, temperature and volt) will be displayed on the LCD screen.

【Combining Technology And Fashion】The Clock Has A Built-In Stable Chip, With Small Time Accuracy Error, Long Life, Rich And Clear Colors . Easy-To-Operate Buttons And Diy Design Make People Reluctant To Put It Down.
【Built-In Full-Color Led, Rich Colors】There Are 16 Million Colors In The Rgb Clock, And Each Number Can Be Adjusted To A Different Color, Showing Your Unique Personality And Adding A Beautiful Landscape To Your Desktop.
【Multiple Mode Adjustment】The Rgb Full-Color Clock Supports 9 Cool Display Modes, Which Can Be Switched Freely Through 4 Buttons To Meet The Needs Of Different Moments And Give Yourself A Good Mood Every Day..
【Power-Off Memory Function】The Clock Is Powered By Usb, No Battery Is Required, And The Clock Has A Built-In Button Battery, So There Is No Need To Repeatedly Set The Time When The Power Is Disconnected In Time.
【Beautiful Packaging】The Clock Comes With Beautiful Packaging, You Can Give It Directly As A Gift To Yourself, Friends, Family. And It'S An All-In-One Clock, You Don'T Need To Go Through The Tedious Installation Process..

Exclusive design of clock football Real Madrid Club add the finishing touch to your home or office décor..
The clock football Real Madrid Club is made from high quality plastic which is flexible, easy, sturdy and with crystal clear image. This clock neither frame nor glass cover and it make our clock safe for kids..
Silent mechanism of clock football Real Madrid Club non-ticking mechanism to ensure silence and accurate time, afford a completely noiseless sleeping or working environment..
Battery operated and easy to install - Powered by one AA battery (not included). Back slot design offers easy installation,1 hook included..
Handmade clocks football Real Madrid Club makes an original present for your friends and family for birthday, wedding, anniversary, New Year, Christmas, and it show your knowledge about their hobbies and interests..

【Maintain Automobile by the Real Time Data】This Car Voltage Meter Clock Thermometer is a multifunctional clock with 4 in 1 function, including time, thermometer, voltmeter and backlight.It can inspect your automobile at real time effectively, there is alarm lamp to remind you to avoid icing may cause damage to your car as temperature lower freezing point. There are alarm voice and lamp to remind you to cheeking the storage battery as the voltage is excessive to too low. You can maintain your aut.
【Special function : 】Time display (12 / 24hour), date display, dual temperature display, alarm clock, snooze function, frost alarm function, automobile storage battery voltage indicator function, LED backlight.
【Blue / Green of backlight】Two colors blue / green of backlight for choice when the clock is powered by car cigarette lighter, there would be no backlight when it is powered by backup batteries..
【Alert Car Battery's Voltage】Alert you to your car battery's voltage and its alarm sensor notifies you of excessive or under normal voltage operations.
【Real Time Display】When it connects with car, its back light is light up and all the contents (including the time, temperature and volt) will be displayed on the LCD screen.

Days Countdown Timer: It is helpful tools which announce how many days have left for an target event or activity.
Alarm Clock: Display the real-time clock time by 12 hours or 24 hours, remind the initial time and date as alarm clock. clock time range: 01/01/18....
Beep Sound: It will sound the beep ring to remind the countdown arrival and daily alarm.
the ring can be set as audible(ON) and silent (OFF) mode.....
Back Magnet: Attached back magnets to make good contact with any steel or iron interface such as refrigerator, oven..
Other Features: Battery replaceable(built-in 2 of CR2032 battery).

This Car Voltage Meter Clock Thermometer is a multifunctional clock with 4 in 1 function, including time, thermometer, voltmeter and backlight.It can inspect your automobile at real time effectively, there is alarm lamp to remind you to avoid icing may cause damage to your car as temperature lower freezing point. There are alarm voice and lamp to remind you to cheeking the storage battery as the voltage is excessive to too low. You can maintain your automobile by the real time data of voltage.
Special function : Time display (12 / 24hour), date display, dual temperature display, alarm clock, snooze function, frost alarm function, automobile storage battery voltage indicator function, LED backlight.
Two colors blue / green of backlight for choice when the clock is powered by car cigarette lighter, there would be no backlight when it is powered by backup batteries..
Alert you to your car battery's voltage and its alarm sensor notifies you of excessive or under normal voltage operations.
When it connects with car, its back light is light up and all the contents (including the time, temperature and volt) will be displayed on the LCD screen.