Review on KNACRO Frequency Voltage Module 0 1KHz by Zach Gopalan

Based on my experience this product is not worth the investment .While it claims to provide accurate readings, it consistently malfunctioned when TESTING automotive equipment. The one pro is that it is compact in size, but that does not outweigh the con of unreliability. Save yourself the hassle and invest in a more trustworthy frequency voltage module..