For repairs of our older analog units refer to the repair technician below. For our newer microprocessor type controller units, please contact us for repair/replacement.
For Older Analog Units:
Lightheart Calibration, 15552 Sorbonne Street, Sylmar, CA 91342
Attn: Michael Freed (Cell) 818-800-1771, (Ph/Fax) 310-672-5993
For Microprocessor (BEST-1) Controllers & Circular Recorders:
22 Mountain View Drive
Chester, NJ 07930