Feature: Specification: Description: Go grab our fingertip-oximeter with spO2, and pulse rate monitor A lovely and practical gift for children Features: HEALTH-MONITOR: Blood-oxygen saturation(SpO2); Pulse rate(PR); Pulse rate Bar; Low-battery indicator. MONITOR ANYTIME&ANYWHERE: Portable mini size. Just toss it into the bag and carry it around. SOFT&BETTER FIT: The finger size is suitable for children aged 6 months-12 years. Built-in silicone ensures a comfortable fit even when pinched. DUAL DIRECTION DISPLAY: Up&down direction available. Built-in direction-sensor for more convenient reading. Short press the button to switch the display directions. CONSIDERATE: LED-display for clear value-reading without any light washout. Auto shutdown in 8 seconds after finger release for energy-saving use. Specifications: -Product Name: Finger Pulse-oximeter -Model: A1/A2/A3/B1/B2(optional) -Main Material: ABS -Display Type:LED -SpO2: Measurement Range: 70%--100% (±2% Resolution) -PR: Measurement Range: 25BPM-250BPM (±1BPMResolution) -Battery: 2 * AAA , 1.5V (EXCLUDED in the package) Product Size: 5.8*3.2 *3.4cm/2.3"*1.3"*1.3" G.W: Approx. 26.5g / 0.9oz Notes: 1. Size information is just for reference only, please allow 1-2cm (0.4-0.8") differences due to manual measurement, thanks. 2. Item color displayed in photos may be showing slightly different on your monitor since monitors are not calibrated the same. Package List: 1*Finger Pulse-oximeter 1*Lanyard 1*User Manual Package List: 1*Finger Pulse-oximeter 1*Lanyard 1*User Manual