Durable and very strong magnets. The only downside is that the magnetic edge has a rough metal finish and can easily scratch the surface you use it on. I needed this to weigh and level many painted metal cabinets. It will definitely scratch the finish if it slides across the surface at all. I need to cover the edge with tape or other material to avoid damaging the surfaces. It wasn't a well thought out design. If possible, you should slide two strips of thin plastic over the edge of the metal so that the metal sticks up slightly from the surface.
Portable Handheld Manometer π for Accurate Pressure Differential Measurement
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
π Dioxide Controller for Digital Gas Monitoring
5 Review
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review