Below are the available bulk discount rates for each individual item when you purchase a certain amount
Check cables for continuity and identify individual wires. Ideal for speaker cable polarity checking. LED indication for open circuit, shorts and correct or wrong polarity. Push button operation with auto power off. 10mA maximum. Main board: 2.2"x1.6"x1.3"; remote board: 1.6"x.3". Requires a 9V battery.