How hot is it? Acurite wireless indoor-outdoor thermometer. (2025 Update) Featured

ll you are WRONG. Well water can have (and usually DOES have quite a high TDS (total disolved solids). Lots of calcium, Magnesium, iron, etc. RAIN water is much closer to pure because it IS distilled.

Not unlikely if using tap water and not correcting for atmospheric pressure.

Doesn't mean it's difficult (I was a high school teacher once)

Not pristine. Filled with minerals that affect the boiling/freezing point.

That's exactly what I am saying. The experiment has to be done with distilled water, not so called "pure water".

Exactly.

Damn some people are stupid!!!!

Certainly.

At least he had an honest heating guy.

Great story. I already told it to a friend of mine.

Meanwhile, I went to Home Depot. Lots of thermometers but they were in the garden shop, outside. 40^, lots of wind. Would take at least

Meanwhile, prices aren't usually this different, But they had a thermometer the same brand for $60.50 that did a little less than the one I've got from Amazon $27.50

BTW they are not the same unit. The amazon does not show Humidity. Hence the higher cost I am thinking.

I actually have an older version of the AcuRite unit. Only shows outside Temp no Humidity for outside. Works quite well. The outside transmitter is unique to each inside unit. They have to be properly matched in order to work. I know because I have had more that one!!

As for accuracy, that is ALWAYS a good question!?!?!?!

Les

I just ordered this one for $25

You're right. I missed that the other does show humidity. So it's comparing apples and oranges, but i'm dubious about all humidty guages except dry bulb/wet bulb. Some just use a string that gets longer if humidy changes in the right direction. AIUI, they don't work for long. Or has there been a breakthrough in the last several years?