Battery wireless doorbell Alcalino ST-337 hermetic range 100m SUN10000024

Used as a doorbell, indoor paging device or personal alarm, useful at home, business or people in need of care, no bell installation required, battery powered bell and button, button with business card, aluminum face, radio transmission (frequency 433.92 MHz), range of operation: 100 m in open area, the possibility of increasing the range of the bell by using the RT-228 repeater.
Possibility of assigning two buttons to one bell, possibility of assigning any number of bells to one button, possibility of cooperation with the ST button -300P and ST-400P, button adapted to work in changing weather conditions (e.g. at the gate), four sounds to choose from (Westminster, Ding Dong, tubular bells, trumpet) - the ability to recognize the place of summoning, sound level: max. 70 dB.