Easy to use: The module is small in size, easy to install, convenient to use, suitable for various timing needs, and can be quickly operated without professional skills. Import Duties.
eBay
Clock chip: high-precision clock chip DS3231. Clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Calendar alarm clock with two. Programmable square-wave output.
eBay
Clock chip: high-precision clock chip DS3231. Clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Calendar alarm clock with two. Clock Accuracy :0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute.
eBay
Easy to use: The module is small in size, easy to install, convenient to use, suitable for various timing needs, and can be quickly operated without professional skills. Import Duties.
eBay
If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. 4 clock chip: high-precision clock chip DS3231. DS3231 module x 1. The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format.
eBay
Clock chip: high-precision clock chip DS3231. Clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format. Calendar alarm clock with two. Clock Accuracy :0-40 ℃ range, the accuracy 2ppm, the error was about 1 minute.
eBay
eBay
Easy to use: The module is small in size, easy to install, convenient to use, suitable for various timing needs, and can be quickly operated without professional skills. Import Duties.
eBay