Professional LED UV Lamp Cordless Nail Dryer Machine

Key features

• 100% New and High Quality!!!
• Colour: blue and white
• Material: ABS
• Product performance:
• Oxygen saturation measurement range: 35% to 100% (resolution of 1%)
• Accuracy: 70% ~ 100%: \u00b1 2%, less than 70% no definition
• Pulse rate measurement range: 30bpm ~ 250bpm (resolution of 1bpm)
• Accuracy: \u00b1 2bpm or \u00b1 2% take a large value
• Power consumption: no more than 30 mA
• Operating voltage: DC 3.0V
• Battery: 2 on the 7th 1.5V alkaline batteries
• Battery working time: the minimum sustainable work 20 hours, the theoretical value of 32