PORTABLE POCKET FETAL DOPPLER
Fetal Doppler applies the ultrasonic Doppler principle to obtain the movement information of fetal heart from the abdomen of pregnant women, enlarge the signals, and output them from earphones so as to calculate the value of fetal heart rate.
Application: clinical and home used
TECHNICAL SPECIFICATIONS | |
Working principle
| Ultrasonic doppler |
Fetal heart rate
| |
Measuring position: | the abdomen of pregnant women |
Measurement range | 50-240bpm |
Accuracy | 土1%or土1 times I m1n, take a large value |
Operating mode: | continuous wave |
Nominal sound work ng frequency | 2.5MHz |
Ultrasonic output power | < 40mW |
The sensitivity | >90dB, at the place 200mm away from the surface of probe |
Service time of battery: | not less than 60 minutes |
Low power indication | battery symbol flashes |
Automatic switch off | no value of fetal heart rate within continuous two minutes or no key operation |
Environment Requirements
| |
Ambient temperature | 5 C-40 C |
Humidity | 30%-80% |
Atmospheric pressure: | 60kPa-11 OkPa |
Storage temperature | -20C -+55C |
Relative storage humidity | 10%-93% |
Dimension:
| 117(L)x57(W)x35(H)mm |
Weight(without battery):
| 80g (including battery) |
Power Requirements
| 2 AAA (No. 7) alkaline battery, 3.0V |
Package including
| 1 pc fetal doppler YJ-90C 1 pc instruction manual 2pcs•No. 7 batteries(option) |
FEATURES
Color:Blue, pink, purple, green
The probe and the main engine are integrated design
Easy to monitor at home, portable, light, convenient
Listen to your baby's sounds in an intimate setting by inserting earphone
High precision FHR LCD digital display
Headphone design, mothers can listen to fetal heart sound on same time
High sensitivity ultrasonic transducer
Low ultrasonic output intensity
Low power consumption
Volume adjustment
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