Indoor Weather Station
Main power requires a 5.0V power adapter(included) for adjustable brightness settings (High - Medium - Low - Off).
If using batteries only, the screen lights up for 15 seconds by pressing the top button, the backlight settings (High - Medium - Low - Off) will not work as it is a power saving feature.
Suggestion: insert the batteries as a backup while using the power adapter, to keep the memory in case of accidental power loss.
Wireless Remote Sensor
It is recommended to mount the sensor vertically in a sheltered location away from direct sunlight and with good ventilation. The wireless transmission distance is 328ft in open air, please note that metal siding, stucco and some types of glass will greatly reduce the range of the signal.