The Santech/Omega Industries Direct Contact Thermometer Kit, Santech No. MT3730 or Omega No. 41-11585, features a dual readout feature with temperature differential to give quick results of each system component. The kit features a handheld thermometer unit with two flexible 18” direct contact thermocouples. The thermocouples have clamp jaws for secure contact at any location and a diagnostic chart to diagnosis each component.