Digital Fetal Doppler
3.0Mhz probe/8MHZ Vascular Probe
Blue backlight;
Built-in loudspeaker and LCD display;
Pink and blue for choosing
FHR Measuring Range: 50~240BPM (BPM: beat per minute) ; Ultrasonic Output Intensity:Isata<5 mW/cm2; Battery Type Recommended: Two pieces of 1.5 V DC battery (SIZE AA LR6).