
I'm not a professional jeweler so I can't say how accurate the measurements are. Based on multiple measurements I took of several beads I own I would say they are fairly accurate. Needed to measure parts I'm reselling but didn't want to spend an arm and leg. Find this good value for money that does what it's supposed to.

Cullaby Contour Gauge: 10 & 5 Inch Duplications For Perfect Templates Of Curved And Odd Shapes, Plus Bonus Angle Ruler & Carpenter Pen!
23 Review

Laser level Zitrek LL1V1H
36 Review

Laser pointer Green Laser 303
31 Review

Laser rangefinder Xiaomi ATuMan Duka LS-P Laser Range Finder 40 m gray
119 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‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
4 Review

Digital multimeter RGK DM-12
6 Review

π Dioxide Controller for Digital Gas Monitoring
5 Review