Tissin offers smart (digital), electro‑pneumatic, and pneumatic‑pneumatic (P‑P) valve positioners—including TS600, TS800, and TS900 series—that support 4‑20 mA control, auto‑calibration, PST, HART communication, and explosion‑proof or intrinsically‑safe housings down to –60°C. Constructed with durable AISI 316 or technopolymer materials and available with high‑flow options, they deliver rugged, adaptable performance in harsh industrial settings.