This listing is for a NEW Siemens 6ES7331‑7NF00‑0AB0 Analog Input Module for the SIMATIC S7‑300 PLC system. It is an SM 331 isolated analog input module designed to acquire standard industrial analog signals including voltage and current. The module provides 8 isolated analog inputs with 16‑bit resolution and supports multiple input ranges such as ±10 V, 1–5 V, ±20 mA, and 0/4–20 mA, making it suitable for precise process signal measurement in industrial automation applications.