Forerunner 210 Owner’s Manual 17
Appendix
Water
resistance
98.4 ft. (30 m)
This product does not
transmit heart rate data
to your GPS device while
swimming.
Battery User-replaceable
CR2032, 3 volts,
(page 19).
Battery life Approximately 4.5 years
(1 hour per day)
Operating
temperature
From 23°F to 122°F
(from -5°C to 50°C)
: In cold conditions,
wear appropriate clothing
to keep the heart rate
monitor near your body
temperature.
Radio
frequency/
protocol
2.4 GHz ANT+ wireless
communications protocol
Water
resistance
32.9 ft. (10 m)
Battery User-replaceable
CR2032, 3 volts,
(page 19).
Battery life Approximately 400 hours
run time
Operating
temperature
From 14°F to 140°F
(from -10°C to 60°C)
Radio
frequency/
protocol
2.4 GHz ANT+ wireless
communications protocol