SPECIFICATIONS:
Color: Blue
Model: LK87
Display Type: LED Display
SpO2 Measurement Range: 70%~99%
Accuracy: ±2% on the stage of 80%~100%; ±3% on the stage of 70%~80%; Below 70% no requirement
Resolution:±1%
PR Measurement Range:25BPM~250BPM
Accuracy:±1BPM or ±1%(the larger one)
PI Index Measurement Scope: 0~20 (optional)
Power: 2 AAA1.5alkaline battery
Power Consumption: Below 30mA
Automatic Power-off: The product shuts off by itself when no finger is in the product >=8 seconds operation environment
Operation Temperature: 5C~40C
Storage Temperature: -20C~55C
Ambient Humidity: 15%~85%  non-condensing
Device Dimensions: 6.40 x 3.90 x 3.60cm

WHAT'S IN THE BOX:
1 x Pulse Oximeter, 1 x User Manual