Thin call button for waiter and staff SOS-102A Call indicator LED REDIP65Button range: up to 300 m in open space,Frequency: 433MHzPower supply: 23A batteryBattery life up to 3 years!Housing case material: ABS plastic & RubberButton functions: Call & Cancel Assembled in Canada Color: white matt The principle of operation of the emergency call button of the nurse SOS-102A When a patient of the hospital presses the call button, the LED indicator comes on. The signal from the button immediately goes to the nurse watch-pager, strobe light-siren above calling area or / and to the call receiver. The button signal will spread within a radius of up to 100 m indoors and up to 300 m outdoors. If it is necessary to expand the coverage area of the signal, a repeater is installed, due to which the range increases to 300 m and 700 m, respectively.
