1)  THERMOCOUPLE CALIBRATOR, 4½ DIGIT, HAND HELD, BATTERY       OPERATED,  SE-400-4.
2)  THERMOCOUPLE CALIBRATOR, 4½ DIGIT, TABLE TOP, MAINS       OPERATED,  SE-402-4.
3)  RTD (PT 100) CALIBRATOR, 4½ DIGIT, HAND HELD, BATTERY       OPERATED,  SE-403.