袖珍胎儿多普勒是一种手持式产科单位，可用于医院，诊所和家庭孕妇进行日常自检，包含超声波信号发射器和接收器，模拟信号处理单元等的组件。它具有音频输出，并可与耳机或录音机连接音频输入。
主要特点

适合使用范围：适合在怀孕第十二周后使用
电池LED指示灯
低电量检查电池
内置扬声器
耳机输出
探头可以更换
探头检查
标准：2M直探头
选项：3M直式探头,2M防水探头,3M防水探头,4/5/8M血管直探针
两片标准1.5V碱性电池，可工作不少于10小时。

主要表现

• 防电击类型：内部动力设备
• 抗电击度：B型应用零件
• 电压：DC 3 V
• 有害液体防护等级：普通设备（无液体密封设备）。
• 能量消耗： < 0.8 W.8 W
• 电源：两节1.5V（AA尺寸）碱性电池
• FHR测量范围：50〜210BPM（BPM：每分钟跳动）
• 探测：
  标称频率：2.0 MHz
  工作频率：2.0MHz ±±plusmn;± 10%
  超声波输出功率：P < 10 mW0 mW
  超声输出强度：I_SATA< 10 mW/cm2W/cm2
  负峰值声压：p_ < 0.5 MPa MPa
  工作模式：连续波多普勒
  传感器有效辐射面积：208 mm2 ±±plusmn;± 15%

物理特性
尺寸：（L）135毫米 ××times;× （W）95mm ××times;× （H）35mm
重量：约180克（含电池）
合格
通过了FDA和CE
易于处理和携带
可靠和一致。
包装：中性纸箱包装/ OEM可用
交货时间：2周内/取决于数量

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