They're great, nice and small, work with no issues and have batteries for about 5 months now. Yes, they're slightly different and slightly inconsistent, but no more than a few degrees or percent. And even then I've compared them to more accurate means, and they're still hardly wrong. So for $7 they do a great job!
Wintact Handheld Anemometer Water Resistant, Small Digital Wind Speed Meter Gauge, Pocket Air Flow Tester With Measuring Wind Temperature 14℉ To 113℉ For House HVAC Outdoor Kite Boat Sailing Surfing
14 Review
Xiaomi Mijia Bluetooth Hygrothermograph 2, white
219 Review
Berrcom JXB-178 Non Contact Infrared Forehead Thermometer: 3 in 1 Fever Check for Kids, Infants, and Adults
62 Review
Xiaomi Mijia Hygrometer Bluetooth Global Thermometer, white
32 Review
Stay Cool With COMFYHOME 3-In-1 Portable Air Conditioner - Efficient Evaporative Air Cooler For Home And Office
11 Review
White Senville Dual Zone Mini Split Air Conditioner Heat Pump, 28000 BTU, Alexa Compatible - SENA-30HF/D
21 Review
🥶 LG TC09GQR Split System Air Conditioner - White
11 Review
🥛 Electrolux EACS-12HG2/N3 Split System Air Conditioner with Milk Cooling Feature
12 Review