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Feature

An NTC thermistor sensor is included, supporting high sensitivity.
A comparator LM393 is contained, so it can output both digital and analog signals at the same time.
Include a potentiometer to adjust the threshold of detection.
Working voltage: 3.3V-5V; PCB size: 2.3 x 2.3 cm
High measurement accuracy with a wide range, good stability, and strong overload capacity. For more information, please refer to http://wiki.sunfounder.cc/index.php?title=RTC-DS1302_Module

Description

Introduction
Adopt the universal 32.768kHz crystal oscillator
With a button cell holder for LIR2032 rechargeable Li-ion battery
Use three lines (CE, I/O, SCLK) to synchronously communicate with CPU, or have a 3-wire interface; support clock signals or RAM data under a multi-byte mode (burst)
5-Pin anti-reverse cable included
Operating temperature: 0C ~ +70C
Power: less than 1mW (data and clock information stored)

Application
Hand-hold devices
Electronic watch
Electronic alarm

Component List
-1 x RTC-DS1302 module
-1 x 5-Pin anti-reverse cable