
The device is good. Haven't used it yet, just checked. Then I will add a review. Rays are bright. Terrible quality glasses. What pleased me was the ability to operate the device from the network. I am adding. After a couple of times of use, the vertical mark was practically invisible, even in the dark with difficulty. The horizontal is as bright as when you bought it. Unpleasant.

Portable Handheld Manometer 📏 for Accurate Pressure Differential Measurement
5 Review

🔧 UEi Test Instruments DAFM3B Digital Multimeter
6 Review

🌬️ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review

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