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.
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You should receive the item within 2-4 weeks. It's very important, we need it.
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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
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
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.
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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. The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format.
eBay
West Asia/Middle East. Australia/New Zealand. United Kingdom. France/West Asia. East/South Asia.
eBay