It is an Antepartum Fetal Monitor measuring FHR and UC. It enables a woman in childbed to indicate fetal movement point by pushing event marker button by herself when she feels that. BT-300 indicates FHR as numeral by irradiating ultrasound at the abdomen, abstracting doppler frequency of heart oeat cycle from the signals reflected from fetal heart, outputtmg FHR change as a sound, and analyzing these signals. Besides, you can measure UC by using pressure sensor, indicate, and onnt the data of FHR and UC. • FUNCTIONS - Twin fetuses Measurement - Automatic fetal movement Measurement. - Alarm & Timer - Printing speed and color depth control functions. - Automatic printing &Zoom • FEATURES - Refined design & Easy - Compact and Portable - Hypersensitive - Free Voltage Adaptor