Model Number: AS-303 Instrument classification: Class II Product name: Fingertip Pulse Oximeter Color: Pink / Blue Application: Fingertip Size: 56*34*32MM Net weight: 50g Display way: Color OLED displays Operation mode: intermittent operation Battery: 2*AAA Alkaline Battery Usage: Househould Product Features: 1: HD color OLED display (using OLED LED production of high-definition color display) 2: the acceleration sensor (Kefu oximeter using high performance acceleration sensor, the measurement time is shortened, only need 8 seconds) 3: one key operation (more simple operation) 4: appearance (with anti abrasion process, improve wear resistance, safety and environmental protection, this small volume, light weight, convenient but 5: the ability to resist environmental light interference (reducing the influence of ambient light on the use of automatic adjustment of brightness can be clearly observed and measured results) 6: intelligent judgment system (intelligent judgment, analysis system if 20 seconds without measuring reaction, oximeter power off automatically)