Max Min Thermometer and Hygrometer - Ideal Greenhouse Thermometer and Humidity Meter to Monitor Maximum and Minimum Temperatures and Humidity Easily Wall Mounted

I didn't know this existed but when going to find a thermometer to put in my new hoophouse, I wanted to be able to monitor the temps to see if it was going to freeze. This is small, well constructed, and will do exactly what I want! The humidity gauge is another added bonus. Great value and I'm so excited about this. Enjoy the vintage look too.

I got this to track temperature in my enclosed porch in early spring and my garage in the winter. I use the porch to as a staging area for vegetable seedlings before planting in the garden. I store some vegetables, like potatoes, in the garage in the fall and winter. So this thermometer works nicely to show you the min and max temperature.It's easy to reset. There are 2 concentric knobs in the center, one for the max temp reading and one for the min temp reading. You turn the max knob counterclockwise to set the max reading arm near the current temp. Note, it's a bit stiffer and harder to turn. Then you turn the min reading arm clockwise to just below the current temp. Once you're used to the feel of how they turn, it just takes a few seconds to reset.I prefer this to battery powered versions. I've been using this for multiple years now, and it continues to work well.

The worst piece of Equipment I have ever purchased. I do not recommend this to anyone ever. I wanted a gauge that would mark the highs and lows in my cold frame. This was so tightly rigged, the gauge didn’t move (up or down), the moisture in the cold frame collected in the gauge, so there is half an inch of water in the gauge and it doesn’t move…I bought two and they are both crap.

we use this in our greenhouse and we reset it each day and check high and low temps as well as keep a record of humidity and can add moisture or vent accordingly. Good price point as well. I would have given 5 stars if it was a little larger in diameter.

You may notice that previous ratings for this item are all over the place, and you probably wonder why? Well, unfortunately, based on my experience with 3 of the same thermometers, all of the ratings are correct. The problem seems to be quality control, a real disappointment, considering these were made in England, not China.In December, I ordered 2 thermometers, one for myself, one for a gift. Glad I did, because one was accurate, the other was not. So I gave the good one as a Christmas gift, and returned the other for exchange.The accuracy of the temperature readings on the two was worlds apart (one very accurate, the other 10+°F too low). They both appeared to be well constructed, with good materials, and resetting the min-max indicators was easy. On the replacement I received, the temperature reading is accurate, and it, like the first two, is well constructed. However, resetting the maximum indicator is virtually impossible without a set of pliers (as a previous reviewer mentioned; I thought she was exaggerating; she wasn't!). I thought about returning it for a third try, but decided the next one might be worse. I figured I had one with an accurate temperature, and that was more important than easy-to-reset indicators. So I'm sticking with the one I've got, and I only bother to reset it when temperature extremes are predicted that I want to record. And I'm hoping that with use, the reset knob will get a bit looser.I did not mention the humidity reading, because I didn't tested that for accuracy. Based on our local TV meteorologists' reports though, it seems to be reasonably close.This is a very pretty, even classy-looking, tool. It is well-constructed of nice quality plastic and metal. If it weren't for the light weight, I would think the front of the dial was glass. Crystal clear, no flaws that I can see. As I said, very nice.

I haven't yet managed to fit the Max/Min thermometer as it only has a keyhole shaped mounting hole and my greenhouse has an all metal frame. I will need to make up a backing plate to which I can fit a screw for the instrument to hang on, and at the same time allowing the backing plate to be attached to the metal structure - somehow and I haven't yet come up with anything suitable. The greenhouse structure is all aluminum as are the screws that hold it all together. These screws are all cut to length so that there is nothing left to which I can attach the plate to. This is annoying as the instrument looks great and is well made and my old Max/min mercury/alcohol thermometer has worn away internally and so does not register accurate temps any more.

The reviews for these thermometers are all over the place, which made me hesitant to buy any of them... but I really wanted a mechanical Min/Max Thermometer that I didn't have to babysit a power supply for. Batteries tend to fail quickly in a greenhouse when it's hot & when temps are below 40° F.I bought 3 of these Min/Max Thermometers... & they all work. All are accurate to the degree, compared to 5 different thermometers I have. Even the hydrometers are accurate to within a 5% variance.Reviews that complained about the min & max needles moving together... I've noticed this happened with mine, only because the min needle was clocked fully counter clockwise... so when I set the max needle, the min needle also moved.What you need to do is set the max needle 1st... then set the min needle. This way they move separately.Don't have loose needles or overly tight dials on any of the thermometers I bought.

As described works well would definitely recommend