The Graham Field GF-3 and GF-3T are reliable analog TENS (Transcutaneous Electrical Nerve Stimulation) units used for the management of chronic and acute pain. Both models feature dual channels, allowing users to apply up to four electrodes simultaneously for broader coverage. They offer three stimulation modes—Burst, Normal, and Modulation—allowing for customized therapy. The GF-3 is the standard manual model, while the GF-3T adds a built-in timer (30 minutes, 60 minutes, or continuous) to help patients manage treatment duration accurately. Both units are compact, portable, and come with lead wires and a carrying case.