
All adjustment screws are loose by default. So you are now completely worthless. No certificate, apparently no quality control. For the third time, this charm no longer matters to this driver.

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‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review

π Dioxide Controller for Digital Gas Monitoring
5 Review

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review