“How long does the back light last up to. I work in medical and need to check pulse and the back light needs to stay on for 20 seconds at least”

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• Mine stays on for roughly 15 seconds. I did a quick look in the settings and did not find a setting to adjust how long it stays on. If there is no way to make it stay lit for 20+ seconds, a possible work around is the built in timer. It's pretty easy to use and the display stays lit while it's running. At least in my test it stayed lit while it counted up past 20 seconds.

  Answered by PJPJ 6 years ago

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• You can edit it for how long you want it. The standard setting is 20 seconds.

  Answered by 22yroldmom 6 years ago

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