Used condition; may have wear and age related marks. See pics for condition / what’s included / testing conducted. Mitutoyo ST133A No.971807 Measurement Pre-Amplifier Mitutoyo ST133A pre-amplifier, exact No. 971807. Exact used listings identify the same Mitutoyo accessory. Condition: Used industrial surplus item with possible age, storage and cosmetic wear. Untested unless explicitly stated; see photographs for exact condition and included parts. Match the exact part number, model, revision and photographed connectors/specification to your application before purchase. Includes x1 ST133A unit as photographed.