Review on 🌡️ 4 Piece Indoor Thermometer Hygrometer: Temperature Humidity Meter for Home, Patio, Planting Room, Reptile Terrariums - Mini Black Gauge by Brian Rogers

Thermometers are normal at normal room temperature. They're all within a point or two of each other at room temperature, and only start to diverge significantly as you approach the extreme ends of the scale (but they diverge more as you get closer to those extremes). Hygrometer on the other side. hand can also be a random number generator. Each of them shows completely different readings. One shows 20, the next 60, then 80, then 95. These units CANNOT be calibrated. The "adjusting screw" that others are talking about is really just a very misleading looking attachment for a bimetallic strip used as a sensor. They look like screws and have arrows next to them indicating they can be rotated to adjust, but both are wrong. Unfortunately, they are almost entirely useless. look elsewhere