•           Built-in speaker.

•           Display FHR by LCD.

•           Three working modes: real-time FHR, average FHR and manual calculation.

•           Automatic power-off when there is no operation for one minute.

•           Equipment with audio recording can be connected by the audio interface, achieves real-time record of fetal heart sound.

•           Low power consumption, continuously work for more than 8-hour with two “AA” batteries.

•           Optional probes: 2, 3, 4, 5, 8MHz probe.