The dial is easily adjustable, so you can adjust the zero point as needed. I've been using this for a few weeks now and it's working as expected with no issues. Rather easier than digital and much more profitable.
π§ Streamline Your Work with Loos Co PT 1 Professional Hands-Free Device
3 Review
Handheld Digital Laser Tachometer Non-Contact RPM Meter Motor Speed Gauge Gun Measuring Range: 2
3 Review
π Neiko 20713A Contact Digital Tachometer
3 Review
Non-Contact Handheld Digital Tachometer for Precise Measurements
3 Review
π₯ Advanced Testo Wireless Hot Wire Anemometer Technology
4 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
π Enhanced Precision with Backlit Professional Manometer for Differential Ventilation
6 Review
Portable Handheld Manometer π for Accurate Pressure Differential Measurement
5 Review