Inacurate Temperature of 00439

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  • Updated 2 years ago
I am comparing this to two mercury accurate thermometers, an accurite 00380W1, and an Accurite Window display  unit. The 00439 temperature is 20 degrees higher after sitting for a day. opened it up and found some spiders in there, but the temperature is still way off. It's so far off that the calibration will not even go to the correct temperature.

Any help on this would be greatly appreciated. 
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adam

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Posted 2 years ago

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AcuRite Jennifer

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Hello Adam,

When comparing readings, you want to compare analog to analog and digital to digital. The reason for this is because they have different accuracy standards. If you feel you are getting an incorrect outdoor temperature, we recommend bringing the sensor inside next to the display. Letting them sit together for 1 hour, and then compare the readings after that. When comparing two AcuRite products together there can be a total of a 4 degree difference between them.  If you continue to experience incorrect readings, please let us know. Have a good day!
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adam

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I had reset the 00439 and compared it to the other wireless digital thermostat. I calibrated it to the other digital thermometer before I went to bed and there was a 1 degree difference between the two when I woke up this morning.

I have now brought in both wireless thermometers and will re-calibrate it based on 4 readings (indoor and outdoor on both wireless stations). After an hour I will recalibrate the 00439 and Place it outside again and compare it to the other digital thermometer.