If you have questions about our products, Fill out the form below and we will answer any questions you have. Tips: Fields marked with*are required. Yokogawa AAM21J / AAM21 Input Module Introduction The Yokogawa AAM21J (also AAM21) module is a versatile analog input module that supports millivolt (mV), thermocouple, and RTD (resistance temperature detector) signals, making it ideal for temperature measurement, process sens *Your Name: *Your Email: *Your Name: *Vdcode: Submit