Specification Name: 200EP High Accuracy Cable Toner Detector Finder Tester Material: Plastic Gain: Nominal 30dB Input Impedance: Nominal 100M Ohm Probe Tip Resistance(Min): Metal Tip: 0 Ohm ,Plastic Tip: 300 Ohm Battery: 2 X 9V Battery DC (NEDA 1604, JIS 006P, Or IEC 6LR61) (Battery Not Included) Battery Life(Nominal): 50 Hours Temperature: Celsius: 0℃ - 50℃, Fahrenheit: 32℉- 122℉ Dimensions: approx. 231x55x28mm/9.1x2.2x1.1 inches DESCRIPTION PREMIUM QUALITY MATERIAL: The tone and probe kit is made of high quality material, wear-resistant and corrosion-resistant. The resistive plastic carbon fiber tip prevents accidental short circuits when probing wires. Makes it safer to use. WIDELY USED 200EP TONE GENERATOR AND PROBE KIT WITH PROBE is widely used for cable and wire maintenance. Measurements include line tracing, short circuit testing, clear/busy/ringing identification. An essential tool for electricians. Spring-loaded on/off button; Adjustable-volume sensitivity control; Recessed terminal port - for cell phone connection; Resistive plastic carbon fiber tip prevents accidental short circuits when probing wires. PROFESSIONAL TOOL: When used with any tone generator, the professional wire audio probe kit with adjustable volume is designed to identify and trace wires or cables within a group without damaging the insulation. Clamp mode can be used for direct measurements on non-terminated cables, as well as for telephone and network line measurements. WARNING: This device is primarily intended for measuring unterminated cables, or low voltage situations below 24V. For any reason you are not satisfied, you can ask for a free replacement or full refund. Product list 1*Cable tester kit (battery not included) 1*Replacement head 1* Storage bag