The answer to 'how to test surge protector' is to use a surge protector tester. This is a simple device that plugs into the surge protector and indicates whether it is functioning properly. Surge protectors help protect your electronics from power surges and spikes, so it's important to test them periodically to ensure they are working as intended.
To use a surge protector tester, simply plug it into the surge protector and check the indicator lights. The tester will show whether the surge protector is properly grounded, whether the protection is active, and whether the electrical outlets are wired correctly. If the tester indicates any issues, it's time to replace the surge protector.