The JPD-5OOE(LED) can measure the amount of oxygenated hemoglobin in your blood over a period of time. It adopts Photoelectric Oxyhemoglobin Inspection Technology in accordance with Capacity Pulse Scanning & Recording Technology, which can be used to measure human oxygen saturation and pulse rate through finger. The device is suitable for daily care in family, hospital, oxygen bar, community healthcare and physical care in sports, etc. It can be used before or after exercise, but not recommended to be used during exercise. FEATURES • Suitable for a wide range of finger sizes • Easy to read display • Fast and accurate measurement • Alert functions • Set includes: pulse oximeter, case, batteries and lanyard strap Specification • Display: HD LED Screen • Parameters: Pulse Rate, SpO2 • Accuracy: SpO2: 70%-100%, ± 2%, Pulse Rate: 25-250bpm, ± 2bpm • Indication: Low Battery Reminder, Value Limit reminder • Application Range: Adult, Adolescent • Battery: AAA x 2 • Dimensions: 62.0 x 37.0 x 32.0mm • Weight: 50g (with Batteries)