The PM17x PRO analyzers combine the familiar look and feel of the PM17x legacy models with the advanced PRO Series capabilities :

• - Class A, Ed. 3.1, per IEC 61000-4-30
• - EN 50160 / IEEE 1159 reports
• - IEEE 519 haromic analysis
• - 0.0001 Hz resolution
• - 16GB on-board memory
• - Dual Port ETH
• - IRIG-B
• - Additional reference voltage input (Vref) for substation battery monitoring
•  

All this along with the basic PRO meter features of integrated I/Os, IEC 61850,
and  Class 0.2S accuracy for energy metering.

https://www.satec-global.com/products/17x_pro/