The 3000 Series Dry-Well calibrators are portable temperature heat sources, ideal for checking the accuracy of digital thermometers and temperature probes, over the range 33 to 300°C with a resolution of 0.1°C. Simple to use, these units offer a high level of stability (±0.5°C) and a stabilisation time of five minutes. Three models available for a variety of probe sizes. FREE traceable certificate of calibration included.