Polar F4TM Technical Specification, Wrist Unit, Transmitter, Elastic Strap, Limit Values

10. TECHNICAL SPECIFICATION

The Polar F4 heart rate monitor is designed to

•help users to achieve their personal fitness goals.

•indicate the level of physiological strain and intensity during an exercise session.

No other use is intended or implied.

Wrist Unit
Battery type:	CR 1632
Battery life:	Average 2 years (Exercise 1h/day,
	7 days/week)
Operating temperature:	14 °F to 122 °F/-10 °C to +50 °C
Water resistance:	100 feet/30 meters
Accuracy of heart	± 1% or ± 1 bpm, whichever is larger,
rate measurement:
	definition applies to steady state conditions
Watch accuracy error:	better than ± 0.5 seconds/day
	at 77 °F/ 25 °C
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 (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 (HRmax%).

Transmitter
Battery type:	Built-in Lithium Cell
Battery life:	Average 2500 hours of use
Operating temperature:	14 °F to 122 °F/-10 °C to +50 °C
Material:	Polyurethane
Water resistance:	Waterproof
Elastic Strap
Buckle material:	Polyurethane
Fabric material:	Nylon, polyester, and natural rubber
	including a small amount of latex
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 (Cal/Kcal)
Total exercise count	65 535

52 ENGLISH