This is a clock with temperature and humidity functions.
The CASIO IDR-200 is a wireless clock system consisting of a main unit and a sub-unit. The device automatically receives time calibration signals from Mainflingen, Germany, to keep accurate time without manual adjustment. It features an antenna icon and Wave OK indicator to show reception status.
| Signal Source Location | Mainflingen, Germany |
|---|---|
| Reception Range | approximately 1,200 km |
| Auto Receive Frequency | eight times each day |
| Temperature Measurement Interval | every 16 seconds |
| Guaranteed Temperature Range | -50°C to 70°C |
The clock receives the time calibration signal eight times each day at specific hours.
It means that all receive operations over the past 24 hours failed.