Used condition; may have wear and age related marks. See pics for condition / what’s included / testing conducted. RKC REX-F4 K 0-600C Temperature Controller 200/220V AC RKC REX-F4 industrial temperature controller configured for Type K thermocouple range 0-600°C, with 200/220VAC supply marking and relay/alarm terminals. Condition: Used industrial surplus item with possible age, storage and cosmetic wear. Untested unless explicitly stated; see photographs for exact condition and included parts. Please match the exact manufacturer part number, model, revision, connectors and configuration shown in the photographs to your application before purchase. Includes x1 RKC REX-F4 controller shown.