DSP technology, more advanced and accurate.

High-power output, loud and clear sound

Wide-beam, high sensitivity, souffle filter

Low ultrasonic acoustic output power, fully assured to monitor FHR.

LCD large-screen display, blue backlight, display the real-time and average FHR.

Optional rechargeable battery or AA batteries.

Charge instruction, full battery indicator, lack of electricity indicator.

Optional 2 or 3 MHz probe, portable for easy transport

Automatically power-off, adjustable time of turning off, no background noise if no monitoring