instrument is designed to identify and trace wires or cables without damaging the insulation. You can also use it in checking for short circuit and loacting open circuit and so on. There are a Sender and a Receiver included in the instrument.
Specifications:
Color: black
Battery: 9V 6F22 lithum battery(Nonrechargeable, Not Included)
Item weight: 150g / 5.29oz
Package weght: 280g / 9.88oz
Receiver size: about 21 * 4.5 * 2.5cm / 8.27 * 1.77 * 0.98in
Sender size: about 5.5 * 6.5 * 2.3cm / 2.17 * 2.56 * 0.91in
Package size: 20 * 12 * 3cm / 7.87 * 4.72 * 1.18in