Hama EWS-3000 Operating Instructions Manual page 9

10. Technical Data
Power supply
Measuring range
Temperature (°C)
Humidity
Measurement increments
Temperature
Humidity
DCF radio-controlled clock
Thermometer
Alarm function
Max. number of outdoor sensors
Frequency
Range
Base station
4,5 V
3 x AA batteries
0°C – +50°C / 32°F – +122°F
20% – 90%
0,1°C/ 0,2°F
1%
Yes
Yes
Yes / 2 alarms (dual alarm)
Outdoor sensor
3,0 V
2 x AAA batteries
For use in outdoor temperatures under
0°C/ 32°F, we recommend using AAA
lithium batteries for the outdoor sensors.
-20°C – +60°C / -40°F – +140°F
20% – 90%
0,1°C/ 0,2°F
1%
No
Yes
No
1
433 MHz
≤ 30 m
7