 The GT-220 (A) and GT-540 (B) multi-function electrical testers provide the electrician with safety and performance, and has a safety category rating of Category IV 1000V. Whether working at the service drop coming from the pole to the building or at an outlet in a residential room, the user can feel confident that the tester provides protection. Both testers have low impedance capabilities to mask "ghost voltage" in addition to the automatic selection mode of AC/DC voltage, resistance and continuity. They also perform non-contact and single probe voltage detection.
The GT-540 provides additional measurement capabilities such as capacitance, diode checks, and low-ohms fast continuity mode.
These testers come with a Lifetime Warranty.
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