Low power consumption,
A regular 9V battery lasts for the whole season.
Gives loud 85dB alarm sound
Working temperature:0~35

In addition to a decoration of the Christmas tree,
the Ball is designed to serve as an extra warning device in addition to the regular smoke alarms.
Low power consumption,
A regular 9V battery lasts for the whole season.
Gives loud 85dB alarm sound.
Working temperature:0~35.
The relative humidity:10~85