Klein® Low-Voltage Tester, 36 in Lead Length, Maximum Measurable Voltage: 6 to 24 VAC/VDC, Digital, Metal/Plastic, Black/Red, 43-1/4 in L. Klein® 69127 Low-Voltage Tester, Contact Low Volt Circuit, 36 in Lead Length, Maximum Measurable Voltage: 6 to 24 VAC/VDC