I let them sit for 24 hours to test. After the humidity leveled off, it stayed at 62% for about 20-21 hours out of 24 hours. The first 2-3 hours were spent balancing the humidity in the room. Very accurate and very satisfied. I didn't get 5 stars because out of 12 only 10 worked well.
Precise Humidity Control With Xikar PuroTemp Round Digital Hygrometer, 10-Second Refresh Rate
27 Review
Xiaomi Mijia Temperature And Humidity Electronic Watch, white
50 Review
Wintact Handheld Anemometer Small Digital Vane Wind Speed Meter Gauge, Pocket Air Flow Velocity Tester With Measuring Wind Temperature 14β To 113β For House HVAC Duct Outdoor Kite Boat Sailing Surfing
18 Review
Room temperature and humidity sensor Aqara Temperature and Humidity Sensor
59 Review
Split system Roda RS-AL09F / RU-AL09F
37 Review
π₯ Electrolux EACS-12HG2/N3 Split System Air Conditioner with Milk Cooling Feature
12 Review
Stay Cool With COMFYHOME 3-In-1 Portable Air Conditioner - Efficient Evaporative Air Cooler For Home And Office
11 Review
UL Certified 120V Unheated Awoco 48 Super Power 2 Speeds 1650CFM Commercial Indoor Air Curtain With Free Door Switch
23 Review