The horizontal vial leaked liquid and the vial covered the entire vial, so it could not be used for horizontal leveling. One of the previous reviews mentioned this but the company said it fixed it but apparently didn't. I've ordered a replacement based on what was presented as being of a high standard and I think with a second one I'll take a look.
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