Three different tones selected from front panel Tone can be added in any status - allows test sets without monitor feature to pick up tone F-connector port for toning and tracing of coaxial CATV cabling systems No power draw in continuity status with leads open Two tone amplitude - normal and half Constant tone amplitude over life of battery Auto-OFF of tone after three hours to conserve battery life Separate Talk Battery status for increased voltage and power for test sets RJ jack allows use of modular cable or alligator clips Low battery LED indicates when to change battery 9 volt battery included