S7-200 SMART G2 EM AR04 RTD Input Module, 4 ?? RTD
$253.66 – $281.84
EM AR04 — 4-channel RTD analog input expansion module. [VERIFIED via Siemens official datasheet for the established S7-200 SMART AR04 module]
Technical Specifications
| Module Type | Analog Input (RTD) |
| Channels | 4 |
Typical Applications
Used for precision RTD-based temperature measurement, suited for applications requiring higher accuracy than thermocouple sensing.






