FeaturesBacklight LCD Advanced technology DSP ensures accuracy and reliability of FHR High sensitivity probe with 1 MHz in pulse Ergonomic design, portable and convenience Built-in speaker, audio outlet Automatic power off when not operated within 1 minute Multi-displaying of FHR, real time FHR display, mean FHR display and Manual Counting display (Optional 2.0MHz) User friendly indicators of number, battery status and voice intensity Option: 2.0MHz in continuous wave
