About power measurements conditioner National Instruments RM-26999:
Enables simultaneous power measurements when coupled with data acquisition modules or devices. The Power Measurements Conditioner provides voltage and current signal conditioning for a supported data acquisition module or device to make up to four simultaneous power measurements per conditioner. It also includes attenuation for voltage channels up to 2,000 V and has power, communication, and signal lines for current measurements from current transducers.