
These outline guides are good enough for general drawing but don't provide the detail needed for intricate work. The "pins" flex too much in tight turns and don't duplicate accurately. However, they are not expensive and quite suitable for my needs.

π Dioxide Controller for Digital Gas Monitoring
5 Review

π‘οΈ Continuous Temperature Monitoring with Relative Humidity Integration
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§ UEi Test Instruments DAFM3B Digital Multimeter
6 Review