Greetings!

Once you replace your Omron Cable with this cable, the Electrodes I sell are much more cost effective, and you will save a SIGNIFICANT AMOUNT OF MONEY using these pads instead of the Proprietary Omron Brand Pads. 
Note:Please be sure your model has 3.5mm jack, works with models with 3.5mm jack-will not work with PM3031 Model

HERE IS A FULL LIST OF MODELS THAT THIS CABLE IS COMPATIBLE WITH(NOTE-CABLE IS COMPATIBLE W/ SUPPLIED PADS IN THIS AD )

PM3030,
HV-F127,
HV-F128
HV-F124,
HV-F124P
HV-125,
HV-126,
HV-F002A
HV-F115
HV-F116
HV-F122

These are great quality pads that work with the supplied 3.5mm lead cable. These electrode pads work with this lead cable that connects to the Omron PM3030 Unit.

Pads have a thick layer of non-irritating conductive gel that adheres well to your skin, but leaves no sticky residue when the electrodes are removed.   
Thank you and have a wonderful day!