About this item Measurement Method : Fully Automatic Measurement Range : SYS: 60 to 260 mmHg, DIA Range : 0 to 199 mmHg, Pulse : 40 to 199 Beats/Minute Power Source : 4xAAA Batteries Pressure Measurement Accuracy : 3 mmHg Pulse Measurement Accuracy : 5% Memory Function Sales Package : 1 BP Monitor, 1 Cuff, 4 AAA Batteries, 1 User Manual Control D BP Monitor comes with 12 months warranty from date of invoice after registering on manufacturer's website within 15 days. Warranty program is conditional subject to terms and conditions of the Manufacturer. Customer need to send their product to Haiden Service center For Repair/Services.