iPowerDigital Hygrometer Indoor Thermometer, Humidity Monitor Gauge Indicator Accurate Temperature Meter with Touchscreen, Min/Max Records, for Home, Office, Car, Greenhouse, Babyroom, 6 Pack

Some of them are 1-2 degrees off. Handy as they can magnet on metal surfaces. Small enough to hang on a push pin in a cubicle at work and can put ne in several rooms at home to monitor heating

They all read within a degree or 2 of each other they aren't perfect but they were exactly what I was looking for to monitor the humidity in my basement. They have an all time high and low humidity and temperature button. You can set it on that or 24 hour high and low. It's also kind of a touch screen I was looking for buttons but it ended up being the actual screen. For the price I think they are pretty snazzy.

Great to monitor my growing areas with one glance. It’s magnetic so attaching to plant stand corners easily. What’s good is that it shows the min max simultaneously with current T and humidity % in one glance.