These lead wires fit any TPN models: TPN 200plus, TPN300D, TPN 350, TPNex, TPN 400D, TPN 800, EMS Machines and various. Standard TENS EMS Machine Lead Wires Cable 1 x Pair(2 Leads). The TENS/EMS Lead Wires have a 'Pin' connection that fits into almost all electrodes pads on the market, and the end that fits into the machine has a 'target' appearance.
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