Freestyle Libre User Manual page 56

Reader moisture
Keep dry
protection
Operating and storage -1,250 ft (-381 meters) to 10,000 ft
altitude (3,048 meters)
60 seconds (120 seconds when test
Reader display timeout
strip is inserted)
Near Field Communication* (13 .56 MHz
Radio Frequency RFID); ASK Modulation; 124 dBuV/m;
1 .5 inch communication range
Data port
Micro USB
Minimum Computer System must only be used with
Requirements EN60950-1 rated computers
Mean use life 3 years of typical use
The Reader has a mean use life of
Reader cleaning and 3 years, which is 156 cleaning and
disinfection disinfection cycles (1 cycle per week
for 3 years) .
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ART38553-101_rev-A_manual.indd 103-104
Abbott Diabetes Care PRT25611
Power Adapter
Operating temperature: 50 °F to 104 °F
Abbott Diabetes Care PRT21373
USB Cable
Length: 37 inches (94 cm)
* Security measures: The communication between Reader and Sensor is a short range near
field communication method making it difficult to interfere with or intercept data that is
being transferred . The Sensor and Reader are protected by proprietary data format, memory
mapping, and cyclic redundancy check (CRC) generation and verification of data .
Quality of Service (QoS): QoS for the FreeStyle Libre Reader and Sensor wireless
communications using the near field communications is assured within the effective range
of 4 cm between the Sensor and Reader that is specified to occur within 15 seconds .
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