This is a brand new attenuator kit consisting of 1 HP8494B and 1 HP8495B Attenuators. The HP8495B has a range of 0-70db / DC-18Ghz. The HP8494B has a range of 0-11db / DC-18Ghz. The new cost of this kit is $2100. Amtronix Instruments, Inc. price is $850.