The 3455RC 01000227 is a fixed output controller from Honeywell. It features 110 VAC power input, a -30°C to 95°C operating temperature range, and a non-isolated relay output. It is a dual digital display controller that supports thermal, current, or voltage input, as well as PID or ON/OFF control. It includes alarms, as well as selectable display of temperature and/or process values, ramp/soak functions, and can be used to control fans, pumps, valves, heaters and other process devices. The controller also has a robust design, with a durable casing and built in transient voltage surge suppression.