DS1302 Rotating LED Display Temperature Display 

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                                                                                Description:
1. Size: 81mm*81mm*1.6mm

2. Thickness: 1.6mm
3. Material: FR4
4. PCB board color: blue
5. LED display: red
6. Supply voltage: 5V

Function Description:
1. Display time and temperature
2. Chime
3. Alarm clock
4. Temperature alarm
5. LED Display selection

Alarm Http://Www.Icstation.Com/Ds1302-Rotating-Display-Temperature-Display-Alarm-P-7044.Html