Here at tec-stop we love how simple the GYS BT501 is to use, simply connect to the battery, tell the tester if you want to check the battery or alternator, and follow steps. It really is so easy to use.
Here at tec-stop we love how simple the GYS BT501 is to use, simply connect to the battery, tell the tester if you want to check the battery or alternator, and follow steps. It really is so easy to use.