200EP High Accuracy Cable Toner Detector Finder Tester 1. This sound source kit is made of plastic material, durable, wear-resistant and corrosion-resistant 2. Insulation probe and built-in speaker effectively avoid short circuit of conductors, making it safer to use. 3. This 200EP inductor amplifier is widely used for cable and wire maintenance. Measurement area includes line trace, short circuit test 4. For unterminated cables, clamp mode is available for direct measurements as well as telephone and network line measurements. 5. The continuous or adjustable generator can be selected, the method is simple and the test result is accurate. Specification: 1. Material: plastic 2. Gain: 30dB 3. Input impedance: nominal 100M Ohm 4. Metal tip: 0 ohm 5. Plastic tip: 300 ohms 6. Battery: 1 x 9V battery (not included) 7. Temperature: Celsius: 0 - 50 degrees Celsius, 32 - 122 degrees Fahrenheit 8. Dimensions: 25.5 x 11.5 x 6cm Package Included: 1 x cable tester 1 x receiver 1 x transmitter 1 x cloth bag 1 x English manual 1 x spare head