Yamatake SDC21 process controller, model C215GA00101, with digital front display and screw terminal connections. OBSERVED FACTS: - Brand: Yamatake - Series: SDC21 - Model: C215GA00101 - Serial number: 044410154 - Marked input: AC 100-240 V, 50/60 Hz, 18 VA maximum - Marked output: 4-20 mA - Front indicators/controls include digital PV/SP display, display button, and EV1/EV2 indicators - Rear wiring diagram and terminal connections are present - Marked Made in Japan CONDITION: Used condition with visible dirt, scratches, cosmetic wear, and label residue. Attached wiring appears cut, modified, or incomplete in places. Sensor range and some configuration details are blank or unreadable. INCLUDED: - Yamatake SDC21 controller unit - Attached terminal wiring shown in the photographs NOT INCLUDED / UNKNOWN: No separate accessories, mounting hardware, documentation, or sensor are shown. Completeness and terminal configuration are unknown. TESTING STATUS: Not tested. Display, control functions, outputs, and operation were not verified under power. Compatibility has not been verified. Certification markings may be visible on the label, but certification status was not independently verified. Please review all photographs for the exact condition and included items.