Features:
Lightweight and Easy-To-Use.
Double Color (blue & yellow) OLED display FHR value, FHR intensity, speaker volume, battery capacity Indicator, working mode, frequency of the probe and FHR synchronization symbol.
Accurate FHR detection. It has FHR mode, average FHR mode, manual count FHR mode and count-down FHR mode.
Detection and Indication of probe off.
Improper FHR alarm value adjusted. The blinking of FHR digit indicates improper FHR value.
Change to power saving mode automatically without signal within 30 seconds.
Auto shut off without signal within 2 minutes.
Earphone port support FHR sound output to earphone or recorder.
Standard 9V alkaline battery is available for power supply