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Forerunner 50 Owner’s Manual 31
appendIx
USB ANT stick
Physical size: 59 mm × 18 mm
× 7 mm
Weight: 6 g
Transmission range:
Approximately 5 m
Operating temperature:
14°F–122°F (-10°C–50°C)
Radio frequency/protocol:
2.4 GHz / Dynastream ANT
wireless communications protocol
Power source: USB
Heart Rate Monitor
Physical size: 34.7 cm × 3.4 cm
× 1.1 cm
Weight: 44 g
Water Resistance: 10 m
Transmission range:
approximately 3 m
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Battery: User-replaceable
CR2032 (3 volts)
Battery Life: approximately
3 years (1 hour per day)
Operating temperature:
14°F–122°F (-10°C–50°C)
NOTE: In cold
conditions, wear
appropriate clothing to
keep the temperature of
the heart rate monitor near
your body temperature.
Radio frequency/protocol: 2.4
GHz/Dynastream ANT+Sport
wireless communications protocol
Accuracy may be degraded by
poor sensor contact, electrical
interference, and receiver distance
from the transmitter.
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