Economical SOLO® Basic temperature controllers provide single loop control for heating and cooling processes using a thermocouple or RTD input signal and a relay, voltage pulse, or current output signal (depending on model). The 1/16 DIN panel size controller operates on 100 to 240 VAC 50 / 60 Hz input power. Two 4 character 7-segment LED displays indicate process value and setpoint (°F or °C selectable). SOLO Basic units accept 11 types of thermocouples, 4 types of RTDs, and support three control modes: PID, ON/OFF, and Manual. An Auto Tuning (AT) function is available with PID control. On select models two alarm outputs are available. These basic controllers are IP66 rated and have a 0°C to 50°C operating temperature range. With UL, CUL, and CE agency approvals, SOLO basic temperature controllers start at $39.00.