Functional, very clean, ready to install. Mass flow remote electronic unit by Micro Motion, model D CS115-FA 8929. Specifications: 115 Vac, 50-60 Hz, 20 Watts max. Weighs 6 pounds and measures 12 X 7 X 4 3/8. We also have a matching Micro Motion Mass Flow Sensor Model D available in store (sold seperately).