ITEM NAME:Active Single Phase Voltage Converter Module AC Output Voltage Sensor Board Product Description Description: Feature: 1. On-board Precision Micro-Voltage Converter. 2. High-precision operational amplifier circuit board, accurate signal sampling and appropriate compensation functions. 3. It can measure 250 V AC voltage, module, and the output analog can be adjusted accordingly. Specification: PCB board size: 49.5*20*19.4mm/1.94*0.78*0.76'' Packaging weight: 21g Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understand. Included: 1 X Voltage Sensor Board.High-precision operational amplifier circuit board, accurate signal sampling and appropriate compensation functions. PCB board size: 49.5 20 19.4mm/1.94 0.78 0.76". Due to the different display and different light, the picture may not show the actual color of the item.