Greenlee 801K Premium Tone and Probe Kit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>LED for visual signal strength indication， continuous on feature</li><li>Microprocessor controlled circuitry， Five minute auto shut off， low battery indicator</li><li>The 200FP probe features AC hum filtering， LED for visual signal strength indication， continuous on feature， 5-minute auto shut off and low battery indicator</li><li>77HP tone generator can be used on twisted pair， single conductors， coaxial cables， de-energized AC wiring.</li><li>Battery operated， 9V not included</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41sa0WHjt4L.jpg" noproxy>