Features 1. Product adopts double color OLED display,can show the six different display mode 2. Low-power consumption, continuously work for more than six hours with one rechargeable lithium battery 3. Battery power indicator 4. The device will automatically power off in 8 seconds if there is no finger signal. 5. Small in volume, light in weight, and convenient to carry Specification 1. Display Type:OLED display 2. SpO2 Measurement range:70%~99% Accuracy: ±2% on the stage of 80%~99%; ±3% on the stage of 70%~79%; Below 70% no requirement Resolution:±1% 3. PR:Measurement range:30BPM~240BPM Accuracy:±1BPM or ±1%(the larger one) 4 PI index:measurement scope:0~20 (optional) 5 Power: rechargeable lithium battery 6 Power consumption:below 30mA 7 Automatic power-off:the product shuts off by itself when no finger is in the product â¥8 seconds 8. Dimension:61.8mmÃ33.1mmÃ26.3mm 9. Operation Environment:Operation Temperature:5â~40â Storage Temperature:-10â~40â Ambient Humidity:15%~80% on operation 10%~80% in storage Air Pressure: 86kPa~106kPa Package includes 1XPackage box 1XPacking cover 1XLanyard 1Xcharging cable 1X Instruction manual 1X Pulse OximeterSpecification: Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 9.5cm * 6.2cm * 3.8cm / 3.74inch * 2.44inch * 1.5inch Qty per Carton 260 Carton Weight 15.00kgs / 33.07lb Carton Size 59cm * 39cm * 24cm / 23.23inch * 15.35inch * 9.45inch Loading Container 20GP: 482 cartons * 260 pcs = 125320 pcs40HQ: 1120 cartons * 260 pcs = 291200 pcs