The Tel-Tru Check-Set Series of dry block calibrators provides accurate, unambiguous, and cost-effective calibration and accuracy verification for a wide range of thermometers and temperature measurement instruments.

The Check-Set series is the perfect temperature reference device for plant quality assurance, process control, food safety, instrument calibration and service, and HACCP compliance (Hazard Analysis Critical Control Points). It is easy to use, reliable, accurate, and compatible with a wide range of dial and digital thermometers, filled system bulbs, and electronic temperature sensors.