I’m wondering which is the more sensitive, i.e. quickest to respond to change, temperature sensor? I’ve got a choice of the E3 sensor or the ST Temp/Humidity types, to control a Keen Vent.
Seems like the E3 sensor might be quicker, as a .1F-degree IR sensor vs. the ST with more conventional temp sensor taking a while to respond to changes, but there’s that polling and response lag between the Ecobee cloud and the ST cloud to consider too.
Anyone care to hazard a guess on which might respond more quickly overall to changes in room temperature?
E3 is maybe quicker, but you can access change of state just 1x 15minutes.
The ST sensor is more versatile overall, since it can sense a bunch of stuff and you can have almost realtime access to the data.
Keep in mind that with something like the Aeotec multi-sensor you have the option of plugging it and forego any battery worries too, which is not possible with the remote ecoBee sensor.
I thought that yvesracine’s E3 code had recently gone to more frequent polling somehow. I didn’t realize the E3 only allows API access at intervals - that would pretty much explain why using the connection between it and ST was pretty unresponsive when I tried it.
On examination, the ST Temp/Humidity sensor has a small round indent on the inside of the plastic case, directly over what appears to be a thermistor bead.
I’m thinking of drilling the hole through the case to the outside, to perhaps improve the responsiveness of the temperature sensing.
I do not think it will improve significantly to bother to drill hole. You can test it. Put it in the freezer for 30 min until temp will be -10C and measure how many minutes until room temperature is 20C. Try it again with hole. I bet that result wil be almost same.