Tel-Tru offers annual maintenance, inspection, cleaning, and accuracy recertification of each Check-Set thermometer calibrator. If your company has net terms with Tel-Tru, you can email customerservice@teltru.com with you SN#, PO# to use for this service. We will process the RMA and send you those instructions with order verification.
If you are prepaying via charge card, you can order here https://www.teltru.com/product/re-certification-for-check-set/ for a discounted rate. You will receive an Order ID # on your receipt that will be your RMA# to ship the unit back to Tel Tru for the recert process:
