
It was great and they work great when needed. I hesitated to buy them after seeing some comments and even pictures of mismatched bubbles. These are different levels. One is the traditional spirit level = bubble between lines, and the other is more for slope or degrees of angle, so the front edge of the bubble is the measurement, not the center.

π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review

π§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review

π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 Review

Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review