wireless waiter call button

The Features of Nurese Call System No cabling needed, and it can practice short distance paging. (ranging from 50m to 100m, depending on the work environment) The user machine can be controlled by one single button, and it is powered by button-shape battery, which can last for more than half a year. Desktop mater machine can be installed onto the wall or be put on a desk. Each msater machine can display calling information in turn and the capacity of different master machines for displaying calls is different. A time limit from 5 seconds to 25 seconds can be set for automatic canceling of the calling signals. The number of each user machine can be freely set from master machine System work frequency: 300MHZ A single mater machine can drive 99 modules of user machines. Different master machines can be used in one environment by setting them at different frequency. The distance of wireless signal transfer can be extended by signal transmitter. The music indicating calls can be choosed.Master Machine IntroductionKB838A The master machine can display information of one call at a time. Size: 274×210×68(L×W×H)mmKB838B The master machine can display three calls simultaneously. Size: 274×210×68(L×W×H)mmKB838C The master machine can display 6 calls simultaneously. Size: 274×210×68(L×W×H)mmComponents DescriptionWireless user machine Various patterns available, including round and octagonal type. Holders for user machines can be fixed onto the wall or be put in chairs. Power by button-shape batteryTransmitter Maintain amplification of wireless signal. Powered by 220V AC.Technical Parameter Transmission distance: In open ground, the transmitting distance can reach 100 meter to 150 meters; in complex working condition, the distance can be 50 meters to 80 meters. A transmitter can help to transmit the signal over a further distance. Power for the master machine: 220V AC Power for transmitter: 220V AC System work frequency: 300Mhz System work method: continuously working. User machine voltage: 1.5 DC, powered by button cell battery Master machine Power consumption: ≤5 W (when there is no call)