Has good build quality, easy to use and seems to measure sound level quite well. The only minor thing is that when I'm in a locked room, which for me is very quiet and also covers the noise sensor, it still doesn't go below 42.
Digital multimeter RGK DM-12
6 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
Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review