
What good is a square if it's not a square? Well beyond the stated error. I had to send mine back even though the size was large. Too bad.

π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
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Digital multimeter RGK DM-12
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π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review