}PRODUCT DESCRIPTION
The product is a lightweight, portable detector. It is designed to meet your detecting and hearing needs by providing advanced
detecting functions and a full range of sound of the fetal heartbeat.
The product is mainly used to detect the sound of the fetal heartbeat (SFH).
The growth and development of a fetus can be found out through examination of these indices. It is applicable for department of
gynecology and obstetrics and clinic daily.
SPECIFICATIONS
Note: The following specifications are subject to change and are only noted as a point of reference.
ULTRASOUND
Ultrasonic emitting frequency:
3MHz
Overall sensitivity at the distances 200mm from the face of the transducer
(Doppler frequency:300±50Hz,Targe velocity: 10cm/s~40cm/s)
≥90dB
Spatial-peak temporal-peak acoustic pressure:
<1MPa
Output power:
<20mW
Effective area of the ultrasonic transducer active element:
4.92cm2
The acoustic coupling medium for normal use:
ph :5.5~8, Acoustic impedance: 1.5*106~1.7*106Pa·s/m
AUDIO OUTPUT
Audio Output Power:
<0.2 W
Audio out socket:
Φ3.5mm
BATTERY
Battery Voltage:
9V
Type:
IEC6F22 9V alkaline
5.2 MODE OF OPERATION
Continuous operating
5.3 PHYSICAL DIMENSIONS
104mm (W) x 120mm (D) x 61mm (H), Wt: 0.14kg (including battery)
W –4.1 in, D –4.7in, H –2.4 in, Wt: 31lbs (including battery)
5.4 ENVIRONMENTAL REQUIREMENTS
OPERATING CONDITIONS
Temperature: 5°C to 40°C
Humidity: <80% RH, non-condensing
Atmospheric pressure: 86kPa to 106kPa
STORAGE AND SHIPPING CONDITIONS
Temperature: 20°C to 55°C
Humidity: 10% 93% RH, non-condensing
Atmospheric pressure: 50kPa to 106kPa