with carry case fingertip electronic oximeter digital pulse tft screen sleep oxygen saturation monitor finger clip blood heart rate spin

accurate result focused on human nail tip through finger-type sensor and get the measurement signal. suitable for all kinds of people: the large-screen led with clear display and magnified readings are more suitable for elderly people to read; automatically turning into sleep mode within 8 seconds ater there is no signal.accommodates wide range of finger sizes (8-25.44mm) lightweight and portable: light-weight and compact, easy to handle and to carry with you for results at home or outdoors..syi