Portable TENS units and other portable electrotherapy units ship in carrying case with electrodes and instructions manual.
Portable Electrotherapy Units – Fabrication Enterprises, Inc. – 13-1377
$62.50
InTENSity 10 Digital TENS with 10 Preset Programs –

Electronic Blood Pressure and Pulse Meters - Fabrication Enterprises, Inc. - 77-0015
Electronic Blood Pressure and Pulse Meters - Fabrication Enterprises, Inc. - 12-2151 