Instructions Pocket Fetal Doppler is a hand-held obstetrical unit, which can be used in hospital, clinic and home for daily self-check by pregnant woman.The device uses color LCD of high resolution to display the fetal heartbeat waveform, and figure out the FHR to help the doctor diagnose in time.It contains components of ultrasonic signal transmitter and receiver, analog signals processing unit, FHR calculating unit, LCD display control unit etc. It has 3 work modes: real-time FHR display mode, averaged FHR display mode, and manual mode .It also has audio output, and can be connected with earphone or recorder with audio input. Main Features ■Beautiful shape, portable, easy operation ■The probe has bending structure which is easy to operate and can increase the ease of the pregnant women, embodies the humane care design ■Fetal heart rate values, bar graph and heartbeat waveform color screen display ■Alarming in red when the fetal heart rate range is out of the normal range ■Battery status indicator ■The probe can be changeable ■Probe inspection ■Built-in speaker ■Output for headphone ■Auto shut off ■Two pieces of standard 1.5V alkaline battery available which can work no less than 8 hours Main performance Anti-electroshock Type: Internally powered equipment Anti-electroshock Degree: Type B applied part TFT Color LCD Display(262 K colors): 160×128 Pixels FHR Measuring Range: 50 ~ 240 BPM (BPM: beat per minute) Resolution: 1 BPM Accuracy: ±2 BPM Power Consumption: < 0.8 W Voltage: DC 3.0 V Power Supply:TWO 1.5V(AA size)alkaline battery Suitable Using Range: Suitable for use after the 12th week of pregnancy Auto Shut-OFF: After 1 minute no signal, power off automatically Working Frequency: 2.0 MHz±10% Ultrasound Output Power: P < 10 mW Ultrasonic Output Intensity: Isata < 5 mW/cm2 Working Mode: Continuous wave Doppler Effective Radiating Area of Transducer: 208 mm2±15% Physical Characteristic Dimension: (L) 135 mm × (W) 92 mm × (H ) 29 mm Weight: About 245g (including batteries) Qualification Passed CE