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5.2 Viewing the Average Reading
Your monitor can calculate an average reading based on the latest 2 or 3 readings 
taken within 10 minutes span.
1. When your monitor is off, press and hold the  button for more than 
2 seconds.
• If there are only 2 readings in the memory for that 
period, the average will be based on these 2 
readings.
• If the average reading is high (refer to section 1.3), 
the “ ” symbol appears.