Review on Rojuna 10-Pack Mini Thermometer Hygrometer - Small Digital Temperature Humidity Meters Gauge with LCD Display for Humidors, Greenhouse, Garden, Cellar, Fridge, and Mason Jar by Robert Castro

I like the accuracy and size of these devices and the display is easy to read. What I didn't like was that the packaging was flimsy and several boxes of devices were crumpled in transit. Most importantly, all devices were already activated upon arrival, so of course the batteries were either dead or fell right out of the box. Anyone who sells electronic devices without disconnecting the batteries should at least have a plastic sheet to disable the batteries. I sent them a message asking them to send me replacement batteries. I will update my review accordingly after they reply. Update 10/26/21: No response from this provider.