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ACT Cellular phone
The cellular phone receives the ECG data from the sensor via
Bluetooth and can store up to 30 days of data (not applicable to
CEM mode). The cellular phone has a special application to convert
the raw ECG data into usable information that is sent to the
LifeWatch monitoring center using a cellular network.
ACT and Bluetooth
Bluetooth is a wireless technology that enables the sensor and
cellular phone to communicate with each other.
The ACT system uses Bluetooth technology to transmit ECG data
from the sensor to the cellular phone. While using a cellular phone
such as the ACT cellular phone, the internal Bluetooth component
is on and running continuously (24 hours a day) for the entire
monitoring period; therefore, the cellular phone must be ON at all
times. Bluetooth operates like a radio and is susceptible to
interference. Bluetooth range is approximately 30 feet,
unobstructed. If the sensor and cellular phone are more than
approximately 30 feet apart, have a physical obstruction between
them (e.g. a wall), or are in an area of radio interference, a
Bluetooth connection cannot be made. The screen on the cellular
phone will display a sensor disconnection message. No data loss
will occur as long as the sensor and cellular phone are
reconnected within six hours. However, the energy used by the
sensor during the connection attempts will deplete both the sensor
and cellular phone battery, resulting in the need to replace the
sensor battery and charge the cellular phone more frequently.