doppler fetal fetal heart detector pregnant women foetus ecg monitor doppler stethoscope fetal movement fetus-voice meter

foreign trade english neutral fetus-voice meter doppler monitoring fetal fetus-voice meter fetal doppler

this model is english neutral packaging foreign trade, not suitable for domestic sales

(please purchase chinese machines for domestic use)

packing box size: 172*135 * 70mm
weight: 0.25kg

17.1g without battery and packaging

30 pcs per box 54*29 * 36.5cm 10kgs

(customized, please contact customer service for charging style)

the performance parameters
a acoustic working (have choice) frequency: 3.0mhz ± 5%
b comprehensive sensitivity: the comprehensive sensitivity is not small at a distance of 200mm from the probe surface
at 90db.
c peak negative sound pressure: <1mpa, output beam sound intensity:
the spatial peak time averaged derived sound intensity:
d ultrasonic output power: <20mw
e the effective area of the sensitive components of the ultrasonic transducer is: 1.57cm ± 30%.
f fetal heart rate detection:
the range of fetal heart rate measurement and display should not be narrower than 65bpm ~ 210bpm.
the fetal heart rate resolution is 1 bpm.
the error of fetal heart rate measurement is not greater than ± 2bpm.
working environment:
temperature: 5 ℃ ~ 40 ℃
humidity: 15% ~ 85% rh
atmospheric pressure: 86kpa ~ 106kpa
storage and transportation environment:
temperature: -20 ℃ ~ 55 ℃humidity: ≤93% rh