Specification:

• Brand: Jumper
• Model: JPD-500E
• OLED display, brightness adjustable.
• SpO2 Measuring Range (0%~100%, (the resolution is 1%).
• Accuracy 70%~100%:±1%, Below 70% unspecified
• PR Measuring Range 25bpm~250bpm, (the resolution is 1bpm)
• Accuracy±1bpm or ±1% (select larger)
• Measurement Performance in Weak Filling Condition
• SpO2 and pulse rate can be shown correctly when pulse resistance to surrounding light
• Power Consumption less than 25mA
• Voltage DC 2.6V~3.6V
• Power Supply1.5V (AAA size) alkaline batteries × 2
• Weight: 28.7g
• Warranty: 2 Year 

Description:

Small, light, convenientSpO2,PR and Perfusion Index value displayPulse rate value display, bar graph displayLow-voltage indication, Pulse sound, Alarm functionAuto shut off without signal after 10sOLED display with brightness adjustable.