I think they were made in someone's garage after a long night of drinking from scrap metal and beer cans. The good thing is that they don't have to be particularly accurate.
π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review