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Get it between 2025-08-22 to 2025-08-29. Additional 3 business days for provincial shipping.
Check and detect for the presence of AC/DC voltage
Verify correct polarity
Includes pocket clip
Durable, high-impact houusing
Easy to use and understand
Gardner Bender's GUSB-3300 USB Tester is a 3 function USB tester used for checking for the presence of voltage and testing for proper wiring and polarity. The tester features a high-impact housing and a pocket clip. It features an LED that illuminates to easily indicate one of four different USB conditions: dead port, ok port, reversed polarity, and AC voltage present..