Yokogawa AAI135-S03 Analog Input ModuleDescription The AAI135 S03 module is a high performance analog input module that supports precise data acquisition for industrial control systems. It is engineered to handle multiple analog signals with high accuracy and reliability, making it suitable for critical process control applications. Specifications Number of Channels: 8 analog input channels. Signal Range: 4 20 mA. Isolation: Fully isolated channels to ensure signal integrity and safety.