LC-401A Pocket Fetal Doppler, hand-held obstetrical unit,
Can be used in hospital, clinic and home for daily self-check by pregnant woman.
Contains components of ultrasonic signal transmitter and receiver, analog signals processing unit etc.
Audio output and can be connected with earphone or recorder with audio input.

Main Features
Battery LED indicator
Low power inspection of the battery
Built-in speaker
Output for headphones
The probe can be changeable

Probe inspection
Support 2MHz, 3MHz, 4MHz, 5MHz, 8MHz probes
Two pieces of standard 1.5V alkaline battery available which can work no less than 10 hours.

Main performance
Anti-electroshock Type: Internally powered equipmentAnti-electroshock Degree: Type B applied partPower Consumption: < 0.8 WVoltage: DC 3.0 VPower Supply: TWO 1.5V(AA size)alkaline batterySuitable Using Range: Suitable for use after the 12th week of pregnancyProbe:
Nominal Frequency: 2.0 MHz
Working Frequency: 2.0MHz ± 10%

Ultrasound Output Power: P < 10 mWUltrasonic Output Intensity: Isata < 5 mW/cm2Negative Peak Sound Pressure: P_ < 0.5 MPaWorking Mode: Continuous wave dopplerEffective Radiating Area of Transducer: 208 mm2 ± 15%