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Operating temperature:
Water resistance:
Back cover material:
Wrist strap material:
Wrist strap buckle and two openings on the back cover are stainless steel
complying with EU Directive 94/27/EU and its amendment 1999/C 205/05 on
the release of nickel from products intended to come into direct and
prolonged contact with the skin.
Watch accuracy better than ± 0,5 seconds/ day at 25 °C/ 77 °F temperature.
Polar S720i/S710i is a Class 1 Laser Product.
Accuracy of heart rate measurement: ±1% or ±1 bpm, whichever larger,
definition applies to steady state conditions.
Altitude and temperature measurement: The Polar S720i/S710i calculates
altitude by using the standard average altitude in certain air pressures
according to the ISO 2533. The air pressure is measured and the
temperature is compensated every second. The receiver displays altitudes
between - 448 m - 7590 m or between - 1600 ft - 24900 ft with at least a 1
m / 3 ft resolution. The reference point's adjustable altitude range is ± 610
m/ 2000 ft from the last measured value.
Speed sensor
Operating temperature:
Battery type:
Battery life:
Accuracy:
Splash proof
J 100
-10 °C to +50 °C/ 14 °F to 122 °F
to 20 metres/ 60 feet
Polycarbonate and glass fibre
Polyurethane
-10 °C to +50 °C/ 14 °F to 122 °F
CR 2032
average 2500 hours of use
±1 %
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