This HP pagewriter 100 ECG Unit M1770-84561 is a reliable and efficient machine that is ideal for use in hospital surgery theaters. It has been designed to provide accurate and detailed results and is suitable for use in various medical and lab equipment, devices. The unit comes from the brand Hewlett and is sold as a single unit. It is perfect for individuals looking for a quality ECG machine for their medical practice. With its numerous features and capabilities, this unit is sure to meet the needs of any healthcare professional. DISCLAIMER: Regardless of the origin of the equipment, documentation provided or identification appearing upon the equipment, the equipment described and offered here is in no way certified for, recommended for, or offered for any specific use. The purchaser agrees that the seller shall not be held responsible or liable for any injuries or damages, whether incidental or consequential, associated in any way with the equipment. The purchaser, by purchasing this equipment, indicates their acknowledgment of, and agreement to the terms of this disclaimer. Note: All medical items are sold to the best of our testing facilities, it will be the buyers responsibility to have these items tested/certified/calibrated before clinical use US -The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, I will verify your status as an authorized purchaser of this item before shipping of the item.