2 layers68.6 × 53.3 mm

Arduino LMeter shield
michpro/Arduino_LMeter_shield
Arduino Inductance Meter shield
33 parts3CERN-OHL-P-2.0
KiCad boards from 1 GitHub repository tagged “inductance-meter”, the most starred first; open any of them in PCBKit.

michpro/Arduino_LMeter_shield
Arduino Inductance Meter shield