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Turning On/Off the Meter
Turning on/off the Backlight
1. How to turn on the Blood Glucose Meter GM550
Press the Main button or insert a test strip.
2. Manual Power off
If you want to turn off the Blood Glucose Meter GM550, please keep pressing the Main button for 4 seconds.
3. Auto Power off
The Blood Glucose Meter GM550 will power off automatically if you don't operate it over 2 minutes.
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1. How to turn on the Backlight
Keep pressing the Main button for 2 seconds.
2. Manual Backlight off
If you want to turn off the backlight, please keep pressing the Main button for another 2 seconds.
3. Auto Backlight off
The Blood Glucose Meter GM550 backlight will turn off automatically if you don’t operate it over 10 seconds.Rightest
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