Review on 🌡️ 12 Pack Mini Digital Temperature Humidity Meters with LCD Display for Humidors, Greenhouse, Garden, Cellar, Fridge, Closet - Orange by Ismael Hennigan

From the factory they should only group 12 units that are close together - totally inaccurate. Using (10) brand new Boveda 62% moisturizers in a large ziplock bag, I placed 12 units in the bag and let sit for 48 hours. The results were: 53% (3 pcs) 55% (4 pcs) 56% (4 pcs) 58% (1 pc) Leaving them in the bag for an additional 24 hours gave the same results. They're basically useless unless I specify the variance for each. I have previously bought 12 of these and had results ranging from 59% to 66%. I figured 12 more would give me enough accurate units to use, but I was dead wrong. As I said they should only group a dozen units that appear to be close together as of course they are not calibrated to actual relative humidity! EXTREMELY DISAPPOINTED!