This is a really simple tool, just what I wanted. I use it to measure the wood I cut from logs so it's accurate enough for my purpose. Looks durable. But it's hard to read, and the line for reading the inside dimension is marked "OUT" and the line for reading the outside dimension is marked "IN"!
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
Digital multimeter RGK DM-12
6 Review
π¬οΈ Advanced 3-in-1 Indoor Air Quality Monitor with CO2/RH/Temp Data Logging and Audible Alarm - NDIR Sensor Technology
8 Review
Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review