Description: Onboard precision miniature voltage transformer , The active phase AC output voltage transformer module Onboard precision op amp circuit, the signal sampling and appropriate compensation for precise functions Modules can be measured within 250V AC voltage, the corresponding analog output can be adjusted, brand new, good quality, high performance. PCB board size: 49.5x19.4(mm). Specification:Material: PCB BoardColor: As picture showSize(LxWxH): Approx. 50x17x20mm/1.97x0.67x0.79inch. Package Includes: 1 piece Voltage Transformer ModuleNote:Pls allow an error of 1-3mm due to the difference of manual measurement.