Topic: How accurate is a 5n1

[thomas]

I just like weather instruments and weather.  Also have a Peet bros ultimeter.

[danandrewswx]

[youtube]https://youtu.be/cTWSWA2RZAA[/youtube] OK, so ask and you shall receive!  The rain gauge without calibration using a \http://www.cocorahs.org/ official rain gauge as a benchmark, let's look at how it did in today's rainstorm in Knoxville, TN.

Anything else you want tested?

[jalmz]

[youtube]https://youtu.be/cTWSWA2RZAA[/youtube] OK, so ask and you shall receive!  The rain gauge without calibration using a \http://www.cocorahs.org/ official rain gauge as a benchmark, let's look at how it did in today's rainstorm in Knoxville, TN.

Anything else you want tested?

Thank you Dan

[floodcaster]

Currently running a 5-in-1 pro along with my Davis VP2 (6163). Wanted to get some inexpensive temp/rh sensors for around the house and be able to check them easily online and was looking at Acurite for that and decided to get the 5-in-1 pro package to see how it compares to Davis as well. I hope to put together some graphs after collecting some data. My main station for reporting will continue to be the Davis.

[Inverno]

How well do the two match-up?

[floodcaster]

How well do the two match-up?

Only 7 days of comparison so hardly a representative sample size but comparing daytime highs, the 5-N-1 averaged 1.9ºF higher than the VP2 with FARS. I believe the specs Acurite indicate an accuracy of  +/- 2 degrees Fahrenheit. It would be interesting comparing sunny to cloudy days as well as min temps. I need to brush up on Excel. 

[Inverno]

Funny, that's about the exact amount my 5 in 1 runs above the Davis stations very close to me but everyone thinks I'm crazy

[nincehelser]

Funny, that's about the exact amount my 5 in 1 runs above the Davis stations very close to me but everyone thinks I'm crazy

That's because you were telling us it was unaspirated.

[Inverno]

False George...i am not sure if it is aspirated or not. What I do know is that I'm always 2 degrees higher. There is another Acurite that just came online even closer to the Davis and guess what.... It's high too by about 2 degrees also.

[nincehelser]

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[Inverno]

That was my opinion, I'm not a Davis model expert.