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Is it me or does anyone else thinks that Davis stainless temp probe responds faster to temperature changes than the SHT 31 in the VP 2? If it does responds quicker to temperature changes, why does Davis use Sensirion sensor chip instead of using a temp/hum stainless steel probe for their stations?
Do you have a link or model number for a stainless steel temp/hum probe? Those of us near the ocean would be interested.
Do you have a link or model number for a stainless steel temp/hum probe? Those of us near the ocean would be interested.Davis doesn’t make one sadly to say. I was making reference to Davis temp probe #6475https://www.davisnet.com/product/stainless-steel-temperature-probe-with-rj-connector/I was just wondering why they wouldn’t use a stainless steel probe as their temp/hum sensor. My apologies for the confusion.Quote from: jgentry on March 10, 2018, 06:33:54 PMIs it me or does anyone else thinks that Davis stainless temp probe responds faster to temperature changes than the SHT 31 in the VP 2? If it does responds quicker to temperature changes, why does Davis use Sensirion sensor chip instead of using a temp/hum stainless steel probe for their stations?
Quote from: jgentry on March 10, 2018, 06:33:54 PMIs it me or does anyone else thinks that Davis stainless temp probe responds faster to temperature changes than the SHT 31 in the VP 2? If it does responds quicker to temperature changes, why does Davis use Sensirion sensor chip instead of using a temp/hum stainless steel probe for their stations?I doubt that the SS probe does intrinsically respond any faster to changes in air temperature. Your post is not really comparing like with like - the SHT T/H sensor is buried right inside the shield whereas the SS sensor is presumably just out in the open air. The SS probe is housed in a passive radiation shield. I also have a 24hr FARS with a SHT-31. In the 24hr FARS, I see .1°-.2° changes quickly but never a whole degree change in a 10 second timespan. Also, there are more .2° changes than I’ve noticed with the SHT-31. That’s why I’m thinking that the SS probe has a faster response time. I also was thinking that was due to the sensor’s filter.My thinking is that a SS probe is a better design than a sensor chip housed in a fairly big filter cap. Then again, I could be wrong. Thoughts?If you had the two sensors side by side on the bench then my guess is that response times would be pretty similar. Your point is probably more about the effect of a (non-FARS) shield on response times than about any difference between the sensors.