Certeza Digital Arm Blood Pressure Monitor-BM405 Features: Digital blood pressure and pulse measurement on arm Universal cuff of 22 – 42 cm Soft cuff material 3rd generation inflation type Large LCD display Irregular heartbeat indicator One-button automatic operation Long-life alkaline batteries Medical product Automatic switch off Signal in case of application error Low battery indicator Optional Adapter *** NO EXCHANGE – NO REFUND *** During the warranty period, if the customer finds a fault in the product, they can claim the warranty directly from the manufacturer.