10pcs DS3231 I2C Pi RTC battery-backed real time clock for Raspberry Pi data-logging, clock-building, NTP servers, time-stamping

10pcs DS3231 I2C Pi RTC battery-backed real time clock for Raspberry Pi data-logging, clock-building, NTP servers, time-stamping
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sku: 4000086182937
$31.36
Shipping from: China
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