GE’s analog input modules accept voltage or current signals and support 2‑, 3‑ or 4‑wire connections. They’re configurable per channel and provide 16‑bit resolution. Standard models offer 4 or 8 inputs with status LEDs and built‑in surge protection for ±30 V; signals beyond that can damage the module. Like other RSTi‑EP I/O, up to 64 modules can be installed, but analog throughput is limited by the network adapter. These modules are fine for general‑purpose sensing, but for high‑speed or high‑accuracy measurement, consider specialized analog cards with isolation and higher resolution.