Features for fetal doppler:<br />∵ Easy and convenient operation<br />∵ High-fidelity、 crystal clear sound<br />∵ Earphone and speaker are feasible<br />∵ High sensitivity doppler probe<br />∵ Low ultrasound dosage<br />∵ Display with backlight LCD<br />∵ Unique ergonomic design<br />Technical Specification for fetal doppler:<br />∵ Ultrasound frequency: 3MHz<br />∵ Ultrasound intensity: <10mW/cm2<br />∵ Power supply: Alkalinity battery<br />∵ Display: 45mm≠25mm LCD<br />∵ FHR Measuring range: 50~240bpm<br />∵ FHR resolution: 1bpm<br />∵ FHR accuracy: ÷1bpm<br />∵ Power consumption: <1W<br />∵ Dimension :135mm ≠95mm ≠35mm<br />∵ Weight:500g<br />Configuration:<br />∵ Main body<br />∵ 3MHz probe