Carent Baby Doppler Sonoline B is a hand-held ultrasound device used to detect the foetal heartbeat for prenatal care and help those expecting to feel closer to their babies. It uses the doppler effect to provide an audible simulation of the heartbeat by detecting changes in the movement of the foetus. This device can be used by healthcare professionals, including nurses, midwives, specialised technicians in hospitals, clinics, the community, and non-professionals at home. Foetal Doppler detects foetal heart rate externally utilising the principle of Doppler shift of ultrasound that the frequency shift of the reflected signal is proportional to the velocity of the reflecting structure-. The ultrasound is transmitted from the probe to the patient body to transmit ultrasonic signals. When this ultrasonic energy is reflected from the tissues, the probe receives the reflected ultrasound and is converted into electric signals. These signals are sent to the CPU for processing on LCD Display. | Uses: It is used to detect a foetal heartbeat at 16 weeks of pregnancy. | Product Specifications and Features: LCD Display In Built Speaker High sensitive doppler probe Easy and convenient operation Hand-held foetal heart rate detecting device Output: Sound signals through headphones Auto shut off if there is no signal within 1 minute Foetal heart sound can be heard clearly for pregnancy more than 12 weeks | Directions For Use: Use as directed on the label. | Safety Instructions: Read the label carefully before use Keep out of reach of the children Avoid physical damage