The AstraPulse FT and AstraPulse FTC oximeters feature the latest technology for measuring oxygen saturation and heart rate. Both models use state-of-the-art power-sparing Organic LED displays. The advanced fingertip tunnel design eliminates the problems encountered with measurements of patients with thin or wide fingers and a three year warranty attests to the durability and reliability of the FT series. When shopping for fingertip pulse oximeters, compare the SDI fingertip models with any others on the market. Feature-for-feature, AstraPulse oximeters stand out in a class all their own. Special algorithm to minimize motion artifact Parameters include SpO2, PR, Bar Graph and Low perfusion Bright, easy-to-read TruColor OLED with eight display view choices 10 Display Brightness levels SpO2 waveform displayed as Fill or Line Audible Pulse Rate tone Value limit alarms for SpO2 and PR Lace lanyard assures easy access Lightweight with only two standard AAA alkaline or rechargeable batteries Photodetector tube assembly made in USA 3 Year Warranty