This baby heart detector is a hand-held obstetrical unit, which can be used in hospital, clinic and home for daily self-check of fetal heart rate by pregnant women. Realizing early monitoring and care for life. Easy to operate and carry.<br/>Features:<br />Excellent performance with 3 working mode: real-time FHR display mode,averaged FHR display and manual mode and easy to operate &amp; switch.<br />Premium quality: contains ultrasonic signal transmitter and receiver, analog signal processing unit, FHR calculating unit.<br />Large LCD display with backlight function, clear to see.<br />Have built-in speaker with volume control and headphone socket for audio output, connecting earphones or recorder.<br />Ultrasound probe, highly sensitive, easy to find fetal heart.<br />Clear speakers. Low power design, clearer listening, adjustable volume.<br />Automatic shut-down. Automatic shutdown in one minute without signal, economical and energy saving.<br />Without radiation, does no hurt to fetal.<br />Pocket hand-held design, portable, in beautiful appearance.<br/>Specifications:<br />PowerBy: 2 * 1.5V Battery (Not Included)<br />Type: FD100<br />FHR Measuring Range: 50-240BPM (Beat Per Minute)<br />Resolution: 1BPM<br />Accuracy: &#43;/-2BPM<br />Auto Shut-off: After 1 minute without signal<br />Working Frequency: 2.0MHZ &#43;/-10%<br />Ultrasonic Output Intensity: 1sata〈5mW/c㎡<br />Effective Radiating Area of Transducer:〈208mm<br />Working Temperature: 5℃ to 40℃<br />Output Power: P〈20mW<br />Screen type: 45mm*25mm LED display<br />Main Body Size: 13.5 * 9.5 * 3.5cm<br />Package Size: 18.3 * 16.5 * 5.7cm / 7.2 * 6.5 * 2.24in<br />Package Weight: 350g / 12.35oz<br/>Note: Optional accessories: earphone, coupling agent (expense is not included)<br/>Package List:<br />1 * Baby Heart Detector<br />1 * User Manual (English)<br/>