Product Category: Heart Rate Monitor / Heart Rate Monitor 

Material: ABS

Measuring range: 30-200 

Graduation value: 3 

Accuracy: 5%

Error: 1 

Working temperature: -10-50 (°C)

Working humidity: 20-95% 

Storage temperature: 50 (°C)

Storage humidity: 50 

Power supply voltage: 3 (V) 

Working current: 0.4