Works for the PTC-155 professional temperature calibrator, the undrilled inserts with 2 holes for STS reference sensors with ¼" (4 mm) hole size. Comes in a 5 of pack.
Works for the PTC-155 professional temperature calibrator, the undrilled inserts with 2 holes for STS reference sensors with ¼" (4 mm) hole size. Comes in a 5 of pack.