colorimetric
colorimetric


Author Comment Last activity Moderation
warren "Discussed on the call today having a pad of note pages attached to the lid of the box in the illustration above. The last two thermometer/hygromete..." | Read more » almost 9 years ago
mathew "if, for the library, we're going to mount everything in a box with a face plate, lets look at how we can integrate the tube's scale and the thermom..." | Read more » almost 9 years ago
nshapiro "Great. I've ordered the last two as they have the accuracy we need--will report back by the end of the week. way cheaper than the one i had found. ..." | Read more » almost 9 years ago
warren "double sided foam tape, maybe? any formaldehyde concerns in the tape itself? " | Read more » almost 9 years ago
mathew "we can put double sided tape down on the spot-- they remove the cover and stick the tube down. we already have a ton of 1/8" double sided tape. " | Read more » almost 9 years ago
warren "The tube ought to be taped to the card, I think, so you don't mix it up if you are storing the cards and tubes together. +1 compactness for varyin..." | Read more » almost 9 years ago
nshapiro "It looks like most of the cheap hygrometers are of the coil and dial variety which I worry about the robustness of. This one is temp and humidity ..." | Read more » almost 9 years ago
warren "Yes, maybe ask Shannon about the budget. The QR code just points at wherewebreathe.org/qr - we can hook that up later to redirect anywhere we like...." | Read more » almost 9 years ago
nshapiro "This looks! great! what do you think the QR code would be? We might need there to be a solid color that the tube is placed on top of for consistenc..." | Read more » almost 9 years ago
warren "I think the card could be folded in half, print outward, so the stuff pushes it flat onto the table. Here's a draft, but I do think we could make ..." | Read more » almost 9 years ago
mathew "One confounding issue is where the card goes in library shipment. I'm looking at foam-lined reusable boxes we can package everything easily and mi..." | Read more » almost 9 years ago
warren "OK, cool - i agree vertical orientation will probably work better, and OK, going to go for a letter-sized sheet; Nick, could you try to select fina..." | Read more » almost 9 years ago
mathew "we should check the accuracy of the digital thermometer-- sometimes they give 3 sig figs but actually only do 2. if we switched to a vertical orie..." | Read more » almost 9 years ago
nshapiro " There we go! working now. " | Read more » almost 9 years ago
nshapiro "Hey Jeff, The card mock up is 5x8. The alcohol thermo and humidity meter is 9x 2.5 at its thickest point. I have 2 inch diameter coil spring humid..." | Read more » almost 9 years ago
warren "Hey Nick - can you post the dimensions, or just a photo of the thermometers you have with a ruler in the photo? " | Read more » almost 9 years ago
nshapiro "we would probably want 1 degree accuracy as the visual read out of the tube has to be multiplied by a temperature coefficient on a 1 degree scale. ..." | Read more » almost 9 years ago
nshapiro " Here is what the thermo and humidity meter look like next to the card. We could still use an alcohol thermo, this one is just a bit clunky. Also ..." | Read more » almost 9 years ago
mathew "I'm seeing 2-degree accuracy on some of those strips. are they cheaper than an alcohol thermometer? do they photograph better? buy some and lets s..." | Read more » almost 9 years ago
warren "What about a thermochromic temperature strip adhered to the card? https://www.google.com/search?tbm=shop&q=thermochromic+thermometer&gws_rd..." | Read more » almost 9 years ago
nshapiro "@mathew I just ordered the temp/humidity meter you recommended. In terms of design maybe it can fit horizontally under the A, B, C columns? " | Read more » almost 9 years ago
nshapiro "Sorry for the slow reply! I think my spam filter may have been hoarding emails from PL. The color changes from a waxy yellowish orange to pink and..." | Read more » almost 9 years ago
mathew "We were talking about relative humidity being important (but accuracy not being a big deal) so including not just a thermometer but also a hygromet..." | Read more » almost 9 years ago
warren "Good questions Bryan. @nshapiro, I'd put those black boxes along the top of my sketch to provide color balance help, but Bryan's right; the tube it..." | Read more » almost 9 years ago