A stethoscope is designed to detect heart beats and frequency. It is used in combination with the sphygmomanometer to measure blood pressure. WE CAN SUPPLY AND INSTALL ANYWHERE IN NIGERIA OFFICES IN LAGOS, ABUJA, PORT HARCOURT AND BENIN CITY Please CALL: 0907-643-3020, 0904-936-7703 WhatsApp: https://wa.me/2349076433020 Email: info (AT) scantrikmedicalsupplies.com Web: www.scantrikmedicalsupplies.com/products