The HMI2 is the latest generation in operator interface for the SiloPatrol SE cable-based “smart” sensor inventory management system. The optional HMI2 features two sensor networks that provide operator interface for up to 32 SiloPatrol level sensors. It also contains a universal AC power supply that supports an input voltage of 100-240V AC. The multi-functional interface controls the SiloPatrol SE SMU “smart” sensors, displays measured and calculated data, and performs/displays system and sensor diagnostic messages. It can be programmed to operate the SMU sensors manually, automatically, or allow for both. The display is back-lit for visibility in low-light conditions and can show data in English or Metric units.Monitor Technologies LLC, Elburn, IL 800-766-6486 www.monitortech.com