General Character 1. Digital Technology，Accurate measurement during low perfusion 2. Anti-Movement, Stable Performance 3. built-in chargeable battery and seat-type charger for long time using. Power-Saved Function 4. Bright, Easy-to-Read LED Numerals 5. Lightweight, Portable 6. Built-in memory card for data storage;connect to computer and save data; optional blue-teeth function 7. 2 parameter: SpO2+Pulse Rate General Character 1. SpO2 ◇ Measurement range: 0-100% ◇ Accuracy: ?% during 70%-100% ?% during 50%-69% 2. Pulse Rate ◇ Measurement range: 30bpm-250bpm% ◇ Accuracy: 1 bpm or ?%. Take the bigger one 3. Visual Displays and Indicators: ◇ SpO2 % display: Red LED. Variable brightness ◇ Pulse Rate display: Green LED, variable brightness ◇ Pulse intensity: Red LED 8 bars ◇ Power Indicator Light: Green; Normal Low Power voltage: Red and Blink ◇ Low perfusion indicator: Red bar 4. Audio Indicator: ◇ Probe off audio indicator (every thirty seconds) ◇ Pulse audio indicator ◇ Key-pressing indicator ◇ Low power voltage 5. Environmental Specifications: ◇ Temperature Range: Operating: (0 -- +50) ℃ ◇ Transport/Storage: (-40 -- +70)℃ ◇ Relative Humidity: Operating: 10 ?95% ◇(noncondensing) Transport/Storage: 0 ?5% 6. Power Requirements: ◇ Four standard ?A?size alkaline batteries 7. Battery Life: ◇ Twelve Hours 8. Regulation Complied: ◇ Quality System: ISO9001 ISO13485:2003 2 parameters: SpO2 + Pulse rate Accessories: ◇1 Pcs Pedestal ◇1 Pcs Adult Finger Sensor ◇1 Pcs Wrist Strap Dimensions: ◇235mm*160mm*70mm Net Weight (with batteries / without batteries) ◇195g/100g Gross weight: 600g sylvia at szmedtech dot com