Bought 3 of these things, I really like them. They're big enough for 99.9% of what I need to measure and small enough to not get in the way or pull my pants down. I take it to work every day and it has never let me down. A magnet will also come in handy.
π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
π Dioxide Controller for Digital Gas Monitoring
5 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