A Pocket Fetal Doppler is a hand-held obstetrical unit, which can be used in hospital, clinic and home for daily self-check by pregnant woman.It contains components of ultrasonic signal transmitter and receiver, analog signals processing unit etc. It has audio output and can be connected with earphone or recorder with audio input.
Main Features

Suitable Using Range: Suitable for use after the 12th week of pregnancy
Battery LED indicator
Low power inspection of the battery
Built-in speaker
Output for headphones
The probe can be changeable
Probe inspection
Standard:2M straight probe
Option:3M straight probe,2M water proof probe,3M water proof probe,4/5/8M vascular straight probe
Two pieces of standard 1.5V alkaline battery available which can work no less than 10 hours.

Main performance

• Anti-electroshock Type: Internally powered equipment
• Anti-electroshock Degree: Type B applied part
• Voltage: DC 3 V
• Harmful Liquid Proof Degree:Ordinary equipment (sealed equipment without liquid proof).
• Power Consumption: < 0.8 W.8 W
• Power Supply: TWO 1.5V(AA size)alkaline battery
• FHR Measuring Range: 50~210BPM (BPM: beat per minute)
• Probe:
  Nominal Frequency: 2.0 MHz
  Working Frequency: 2.0MHz ±±plusmn;± 10%
  Ultrasound Output Power: P < 10 mW0 mW
  Ultrasonic Output Intensity: I_sata< 10 mW/cm2W/cm2
  Negative Peak Sound Pressure: p_ < 0.5 MPa MPa
  Working Mode: Continuous wave doppler
  Effective Radiating Area of Transducer: 208 mm2 ±±plusmn;± 15%

Physical Characteristic
Dimension: (L) 135 mm ××times;× (W) 95 mm ××times;× (H ) 35 mm
Weight: About 180 g (including batteries)
Qualification
Passed FDA and CE
Easy to handle and carry
Reliable and consistent.
Packing: neutral carton packing / OEM available
Lead time: within 2 weeks / depending on quantity