aCurio AF - 708D Ultrasound Doppler Radiation-free Fetal Heart Rate Monitor - White - 4179712512

Descriptions:
This pocket fetal doppler is a hand-held obstetrical unit, which is applicable for department of gynaecology and obstetrics, clinic and home.

Features:
- Calculating FHR with DSP techniques as used in fetal heart rate monitor, ensuring the FHR accuracy and reliability
- High sensitive probe, low ultrasound power, more safety to the fetus
- Friendly interface, easy to operate, adjust the volume with a rotary switch
- Headphone output with Li-ion battery power supply
- Stopwatch function is attached to display function
- 60 seconds countdown design
- Rechargeable 3.7V 800mAh Li-ion battery is optional according to demand

Notice:
Do not use the device when Li-ion battery is charging.

Specifications:
Working environment:
Temperature: 5 - 40 Deg.C
Humidity: 15 - 85 percent
Atmospheric pressure: 86 -106kPa

FHR performance:
Integrative sensitivity: more than 90db
FHR measuring range: 50 - 210BPM

Ultrasound probe:
Working frequency: 2.5MHz
Working mode: continuous wave doppler
Spatial-peak temporal-peak intensity: less than 0.1MPa
Ultrasonic output intensity: less than 10mW
Effective radiating area of transducer: 157 square millimeter

Battery type:
3.7V 800mAh Li-ion battery