SIGMA SPORT ONYX EASY User Manual download pdf (Page 30)

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7.2 FAQ

Do SIGMA heart rate monitors switch off completely?

No – in sleep mode only the time and date are displayed so you

can use the heart rate monitor as a normal watch. In this state

the ONYX FIT uses only very little power.

Why does the display react slowly or is coloured black?

The operating temperature may be too high or low. Your heart

rate monitor is designed for temperatures between 0 °C and

55 °C (32–140 degrees F).

What should I do if the screen display is weak?

A weak display may be due to weak batteries. You should change

them as quickly as possible – battery type CR 2032

(Item No. 00342)

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SIGMA SPORT ONYX EASY User Manual Page 30