Review on Sperry Instruments TT64202 Cable Test Plus - Short, Miss-wire & Reversal Detection - 2 Pc. Kit by Stephen Lunn

Purchased January 2019. Used to test coaxial cable for home TV antennas. The device worked great. About a year later I used this device to test Cat6 cables for my home network. The device worked great. At the end of March 2020 I used this device to test additional home network cables and the main device did not turn on. I changed the batteries and tried 6 different batteries but the main unit would not turn on. This is a pretty basic device that stops working after 2 times. I thought Sperry was a reputable brand and for the price I thought it was a good deal. I do not think so.