Probe cord to connect the probe to the Pulsator IV. This cord has a 2-prong twist-lock connector and is for Pulsator IV units purchased prior to 11-15-2016. All machines purchased after this date have a new connector for the probe cord. Please, see the images to determine if this is the cord you need or call us at 800-777-2603 and we can assist. As of September 5, 2025 prices of all our products have increased. Unfortunately, this is necessary due to expense of materials increasing and existing and future tariffs.