Simpson H340493120 Digital Temperature Controller

Simpson Electric Hawk 3 Advanced Digital Controller, model H340493120, is a 1/8‑DIN, four‑digit red‑LED panel meter and temperature controller that accepts RTD PT100 3‑wire sensors. It is designed for 120 VAC operation (the Hawk 3 family also covers 85–250 VAC variants) and typically consumes 7 W at 120 VAC. The unit provides up to four 5 A relay outputs and supports an analog output of 4–20 mA or 0–10 V, with optional sensor excitation at 12 V or 24 V. The RTD PT100 3‑wire input offers a temperature range of -200 to +200°C with about 0.2% accuracy and ±2 counts, while the operating ambient temperature range is 0–50°C. This controller is suited for PID/temperature control in industrial heating or cooling applications and is produced in the United States.