Recent content by jkcunningham2

It looks like the Home Depot kit consists of two salt pastes: they are obviously using Magnesium Chloride (33%) and table salt (75%). Current price for that is $61 USD. I bought three salts from a science supply outfit online and rock salt at the hardware store, all for under $20. That gave me...

Sensitivity is a good thing in most cases - certainly for weather station applications. I'm not standing in front of the sensor breathing on it and I want it to respond to changes in it's environment without a lot of lag. But sensitivity is orthogonal to the qualities of accuracy and drift...

I've been running a 1-wire weather system for years built out of pieces and parts - some Hobbyboard, some homebrew.  I've always measured humidity along with everything else but never tried to verify how accurate it was until recently when I noticed that my outside sensor was consistently -- and...

I've had an account with them for years also. They do have a free account but it has a big stick to get you to convert to a pay account: with the free account you have to manually log into it once a month or it gets suspended. With the pro account it will sit there charging you yearly forever...