
I think 1/3 of these were leveled accurately and I didn't bother to check plumb or 45°. The vials are attached to the plastic, but the metal and magnet won't stick to the walls. They should be distributed to employees to improve the quality of work. Luckily I noticed before they did the opposite!

🔍 Dioxide Controller for Digital Gas Monitoring
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🌡️ Continuous Temperature Monitoring with Relative Humidity Integration
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🌬️ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
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