Whether you're a DIY pro or a seasoned electrician, the Gardner Bender 3-WAY VOLTAGE TESTER is your go-to tool for checking AC/DC Voltage at 120, 240, and 277V hassle-free. With individual indicators for each voltage range, this heavy-duty tester guarantees reliable results every time. Plus, the 24-inch test lead gives you the flexibility to test conveniently in any space, making your electrical work a breeze.