4 Pcs Mini Hygrometer Thermometer Meter Digital LCD Monitor Indoor Room Round Humidity Temperature Gauge

Good

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I have been using these hygrometers in my filament dry boxes and I am very happy with them. For other uses I would like the temperature in degrees F. I added 4.5x4.5x8 tactile switches to the boards to easily switch between C/F. Do not touch the humidity sensor as you can alter it's performance.

Item arrived as advertised in perfect condition

I have ordered these from several different vendors for my filament dry boxes. They all read the same humidity within a few percent. Some come without a C/F switch, but you can carefully pry off the back cover and solder a small tactile switch to the board to allow for easy switching between temperature units. Avoid touching the humidity sensor.

Accuracy of good, batteries included

It comes with batteries. Great.

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