25MHz-4GHz Line Sweep with DTF and Power Monitor option(requires Non-included Sensor). Could use a new RTC Battery (Real Time Clock) I have just purchased a new Main battery for this unit and it works great. it has a couple of lines in the screen that isn't working but doesn't affect operation. comes with: Soft Case Power Supply (Extra Long corded version) Insta-Cal Module. PN ICN50 OSL (Open,Short,Load) Calibration component OSLN50-1 (this is over $500 alone) I got this from a friend that was getting out of the industry and shut down his company. Any questions just ask. tom.king.612@Gmail $1000.