In good working condition came from a working lab of a local aircraft plant which downsized operations.

 Calibration expired Jan. 2024.  Includes everything shown in the pictures.

• Source and Read Fourteen T/C Types plus mV
  J, K, T, E, R, S, B, N, G, C, D, L (J DIN), U (T DIN) & P (Platinel), -13.000 to 80.000 mV
• Calibrate with Confidence
  Resolution to 0.1 °F & °C; Accurate to 0.2°
  Cold Junction Sensor Accurate to 0.05°C
• Verify Heat Treating Uniformity Survey Recorders and perform System Accuracy Tests
  The PIE 422 is capable of meeting the requirements of an AMS 2750 Field Test Instrument when certified by an accredited laboratory.
• Faster Calibrations
  Instantly select three outputs with EZ-CHECK switch
  Easily find trip points with two speed EZ-DIAL knob & Automatic Stepping
• Easily Change T/C Types & Scale
  Double click to select T/C type & °F & °C
• Easy-to-Read Display
  Turn on the backlight to read in dark areas of the plant
• Use in the Plant, Field or Shop
  Includes Rubber Boot and mV Test Leads
  Low profile switches resist accidental damage
  Brass screws for T/C wires plus mini T/C socket
• Simple “No Tool” Battery Changes
  Four inexpensive “AA” batteries
• Verify Cold Junction Temperature & Output
  Secondary displays of compensated millivolt setting and cold junction temperature