Fingertip pulse oximeter TK-2528

Product Operation Scope The fingertip Oximeter can be used to measure human Hemoglobin Saturation and heart beat through finger. The product is suitable for use in family , hospital (including clinical use internist/surgery , Anesthesia , pediatrics . intensive care etc ). Oxygen Bar, social medical organizations physical care in sports -- Technical Parameters * Display Format: LCD Back light: LED SP02:35-99% Pulse Ratio:30-250 BPM Pulse Wave: LCD Graphic Display Battery Voltage Low Indication: LCD signals. *Power Requirements: Two AA size 1 5V Alkali Battery; *Power Consumption: less than 20 mA. *Resolution: ±1% for SPO? and ±1 BPM for Pulse Ratio. *Measurement Accuracy: ±2% in stage of 70%-99% SPO? and meaningless when stage being smaller than 70%. ±2 BPM for Pulse Ratio. *Measurement Performance in Weak Filling Condition : Oxyhemoglobin and pulse value can be shown correctly when pulse-filling ratio is 0.4%. *Interference Resistance Capacity against Ambient Light: Deviation is smaller than ±1% between value of Oxyhemoglobin measured in natural lighting indoor condition and present lighting sources and that measured in dark room. *It is equipped with a function switch, hrough which the Oximeter can be automatically powered off when no finger is in the Oximeter more than 8 seconds Product Properties Operation of the product is simple and convenient. The product is small in volume , light in weight (total weight is about 50g including batteries ) and convenient in carrying. Power consumption of the product is low and the two originally-equipped two AAA batteries can be operated continuously for 100 hours.