POLAR F4 - Manual (Page 23)

Technical Specification
Wrist Unit
Battery type F4F CR 1632
F4M CR 2032
Battery life CR 1632 average 1.5 years
CR 2032 average 2.5 years
Operating
temperature -10 °C to +50 °C / 14 °F to 122 °F
Accuracy of heart rate
measurement ± 1% or ± 1 bpm, whichever
larger, defi nition applies to steady
state conditions.
Watch accuracy error Better than ± 0.5 seconds/day at
25 °C / 77 °F temperature.
Wrist strap material Thermoplastic Polyurethane (TPU)
Wrist strap buckle
and strap tongue
material Polyoxymethylene (POM)
Back cover material Stainless steel complying with the
nickel release regulations of the
(EU Directive 94/27/EU and its
amendment 1999/C 205/05).
Heart rate is displayed as the number of
heartbeats per minute (bpm) or as a percentage of
your maximum heart rate (HR
max
%).
Transmitter
Battery type Built-in Lithium Cell
Battery life Average 2500 hours of use
Operating
temperature -10 °C to +50 °C / 14 °F to 122 °F
Material Polyurethane
Water resistant 100 m
Elastic Strap
Buckle material Polyurethane
Fabric material Nylon 46%, polyester 32%, natural
rubber (latex) 22%
Limit values
Chronometer 23 h 59 min 59 s
Heart rate limits 30 - 199 bpm
Total time 0 - 9999 h 59 min 59 s
Total calories 0 - 999999 kcal/Cal
Total exercise count 65 535
E N G L I S H
Customer Service Information 23