5 in 1 weather station - humidity way off

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We have three humidity / thermometers in use right now. We're replacing the old two with the 5 in 1 weather station. Both the other digital gauges read very close to each other.  The 5 in 1 reads 92% outdoor humidity - my other gauges read 73% and 74% - Weather Underground (there are several other sensors in my area) says it's 75% 1 block from me.

For indoors, it reads 20%. The other gauges read 36% and 38% - that's a huge gap, and it's obvious the 5 in 1 is way off, as is the indoor sensor.  The temperature is also off by 11 degrees outdoors - indoors is fine. Any suggestions?
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Rick Drew

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Posted 4 months ago

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I believe your other gauges are too low. In the upper ranges, hygro sensors can be off more than in the 50% range. Looking at the numbers you have shown, I would bet actual humidity is around 85%. What is the brand of the other sensors?

When is your outdoor temp off by 11 degrees? The worst I have ever seen is at night, and that is 5 F low, unless the aspirator is not working, and then in the sun it can be off by 11
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Rick Drew

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Hi - thanks for the reply. It is incorrect all day and night.   The other sensors are also Acurite.  We have a couple - the idea is to get multiple sensors and use this one station for them. and get rid of the individual ones.  For example, we have a model 00611A3-RX.  It's reading 40 degrees / 43% outdoors, 78 degrees / 13% indoors.  The new system (5 in 1) is reading 40 degrees / 30% outdoors, 79 degrees / 18% indoors. 
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AcuRite Jennifer

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Hello Rick,

We would recommend doing what we call a hard reset on the weather station. Please follow the steps below in the exact order listed.

You want the display and sensor to be at least 3 feet from electronics such as televisions, microwaves, computers & radios. Follow the battery guidelines below:

•Verify you are using fresh alkaline batteries or lithium batteries (when temperature is below -4oF/-20oC) in sensor.

•Quality brand batteries are recommended, including Duracell, Rayovac, Energizer, or Kirkland.

•Verify batteries are fresh. The battery expiration date should be at least 6 years out. Batteries can lose 3% power or more every year in storage.

•Heavy duty, extra strength or generic / store brand batteries are not recommended for use with AcuRite products because they may cause performance irregularities due to the way these types of batteries disperse power. Each battery should not exceed 1.6 volts.

•Rechargeable batteries are not recommended for use with AcuRite products because they may cause performance irregularities due to the voltage instability of these types of batteries.

•Mixing different battery types (brands, old/new, etc.) is not recommended.

Perform a hard reset:

1.Bring both the sensor and display unit indoors side by side.

2.Remove batteries from the sensor.

3.Remove batteries from the display unit and unplug the AC adapter (if applicable).

4.Wait 2 minutes to ensure any remaining battery power is discharged from both units.

5.Change the A-B-C Channel on both the display and sensor making sure they both match.

6.Reinstall batteries in outdoor sensor first.

7.Reinstall batteries in display unit second.

8.Let the units sit within a couple feet of each other for 30 minutes when comparing for accuracy
* The display should receive the signal within several minutes.

9.After a connection has been established you may place the sensor outdoors.
*If the signal connection fails after the units are separated try a new or different location for the display unit, the sensor or both.