Delrin® Metal Detector Test Card

The compact design of these test cards makes them ideal in many metal detector calibration applications. Test cards are made from solid acetal copolymer. Certified metal spheres are completely sealed within the card. Test cards are red (ferrous), green (non-ferrous), and blue (316 stainless steel) for easy identification. 

Calibrating your metal detector has never been easier. These metal detector test cards are just examples of the many styles of tools available. Please call 800/826-8302 for availability on test cylinders, whips, balls, sticks, or any special applications.