SMARTRO SC42 Professional Digital Hygrometer Indoor Room Thermometer | Humidity Gauge Pro Accuracy Calibration
SMARTRO SC42 digital hygrometer thermometer with a calibration function, a compact room gauge for checking humidity next to a bonsai bench.
Price range: See on Amazon
What we liked
- + Calibration function lets you correct the reading against a reference
- + Shows temperature and humidity together on one display
- + Small size fits on a shelf or bench beside the trees
Trade-offs
- - A single unit only reads the one spot where it sits on the bench
- - Readings show air humidity only, not soil moisture
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