Review on 🌡️ 8 Pack AUTIDEFY Mini Digital Temperature Humidity Meters - LCD Display Fahrenheit (℉) Indoor Thermometer Hygrometer Gauge by Dred Swindler

I bought sensors to keep in guitar cases to monitor humidity (40-60% range). None of the pack was within 5%. I set the humidity in this room at 45%, then turned it off until it dropped to 40 and turned it back on. My PROTME moisture meter reads 41.0 and my humidifier says it's currently 42.5. But all these little digital gauges from AUTIDEFY read less than 30. his PROTME for 10 minutes and opened the case, it showed 53%. So I trust PROTME and HUMIDiTRAk, but not these little gimmicks.