Not Sure What to Believe (Temperature Readings)

So here are my Govee, Thermapro, and generic water thermometer readings … how do I know which reading is accurate? I considered buying an analog thermometer, but they don’t seem any better.

Note: Govee unit can be calibrated, Thermapro unit cannot.

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You can try placing them outside your grobo for a couple hours to see which one of them gets the closest to your house thermostat.
My house thermostat is set at 68 when I place my hygrometer outside the grobo its at 70 so about three degrees diff.

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I live in a prewar apartment building so we don’t have thermostats :weary:

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