Fetal Doppler

We are offering fetal doppler.
features：
◆ pocket fetal doppler mainly applies to detect fetal heart rate for fetus of more than twelve weeks;
◆ trdf-500d+ with a blue backlight lcd can display fhr, synchronous fhr signal, battery indicator,
volume of sound and alarm indicator accurately; designed for darkness use; with automatic dormancy,
self-detecting, and alarm function to make caution for abnormal fhr and low battery capacity;
◆ only 270 g, easy to be carried, built-in speaker;
◆ 2.0 mhz bigger handgrip probe, easy to hold and replaced, ( waterproof probe for option );
◆ 9 v dry battery and rechargeable ni-mh batteries can be alternatively applied .
Specifications：
ultrasonic frequency: 2.0 mhz ± 10% ( c.w.)
fhr display range: 60 -210 bpm (± 2 bpm )
fhr alarm range: ＜100 bpm or ＞160 bpm
battery: 9v dry battery
maximum audio output intensity: ≤ 1.0 w
doppler frequency: 100-3000 hz
static continuous working time: trdf-500d+ ≥ 5 h
automatic dormancy time limit: 1 minute
normative collocation:
gallus, ( optional: 9v ni-mh rechargeable battery and charger ;60 ggel ; portable soft handbag )