The o-ximeter can be used to measure oxygen saturation and pulse rate through finger. Be suitable for family, p-ersonal care in daily use. Features: Display Parameters: blood-oxygen SPO2 value, pulse value, pulse waveform chart. Clear TFT 4 Directions Display Screen: Adopted clear & precise TFT 4 directions colorful screen display. 4 Display Mode: Up, down, left, right 4 directions meet your different need. Energy Saving & Eco-friendly: low pow-er consumption, and it is powered by 2 * AAA b-atteries can last for long working hours (B-atteries are not included) . Automatic Shutdown: when no signal is generated, the product will automatically shut down after 8 seconds. User-friendly: Integrated with blood-oxygen probe and processing display module, the product is simple to use, low pow-er consumption, small size, light weight and easy to carry. Specifications: Item type: O-ximeter Power: £¼30mA Material: ABS+PC Item color: Blue Blood oxygen saturation measurement ran-ge: 70%~99% ±2%