Can an RJ45 ethernet cable Tester destroy equipment that was accidentally left plugged in?

I was testing an RJ45 cable with my Tester and accidentally left equipment plugged into the other side of the line while my Tester was on. Could having equipment on while the Tester is sending the electronic signals to each wire, harm the equipment?

This is my tester: https://www.amazon.com/iMBAPrice-Network-Cable-Tester-Phone/dp/B01M63EMBQ/ref=sr_1_4?dchild=1&keywords=ethernet%2Bline%2Btester&qid=1601316559&sr=8-4&th=1