A USB-powered digital thermometer and hygrometer with a built-in fan that switches on automatically when humidity climbs, keeping air moving in glass reptile and amphibian enclosures.
What it does
Two readings at once: a large LED screen shows temperature and humidity side by side.
Automatic fan: turns on when humidity passes 60%, with an adjustable trigger point.
Fast updates: readings refresh every second.
Flexible mounting: use the suction cup on the glass or the stand.
Low energy use: runs from USB power.
Specs
Temperature range
14°F to 122°F (-10°C to 50°C)
Humidity range
20%–99% RH
Accuracy
±1°C / ±5% RH
Fan trigger
Above 60% RH, adjustable
Power
USB
Where it helps
Glass terrariums and small-animal or amphibian habitats with limited ventilation, where excess moisture and stagnant air can lead to mold. Set the fan threshold to match your species' preferred humidity range.
Placement tip
Read conditions where your animal actually spends time, not right next to a mister or heat lamp. Many keepers use one unit on the warm side and a second on the cool side.
