Polar Electro S725 User Manual page 104

Wrist unit
Battery type:
Battery life:
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
Polar S725 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 S725 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 wrist unit 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
from the last measured value.
Speed sensor
Operating temperature:
Battery type:
Battery life:
Accuracy:
Splash proof
CR 2354
Average 2 years (2h/ day, 7 days/ week)
-10 C to +50 C/ 14 F to 122 F
to 30 meters/ 100 feet
Polycarbonate and glass fibre
Polyurethane
0,5 seconds/ day at +25 C/ 77 F temperature.
-10 C to +50 C/ 14 F to 122 F
CR 2032
average 2500 hours of use
1 %
I 102
610 m/ 2000 ft