instrument calibration, chart recorders, electric heaters, electronic instrument maintenance or repair, industrial instrument maintenance or repair, instrumentation repair or reconditioning, instrumentation calibration, electrical instrumentation repair, level transmitters, industrial oven installation or maintenance or repair, infrared pyrometers, solid state relays, thermistors, thermocouples, temperature controls available from yankee controller service based in rockland, ma. click the links below to visit our website or contact us via our profile page.