1. The product does not contain any couplant. We recommend using a couplant instead of the common aloe vera gel, also known as ultrasonic couplant.

2. The new version sold now does not have a headphone jack.

3. Due to transportation problem, the battery is not included, if you mind, please do not buy!

Description：

• Probe Prenatal Fetal Doppler Baby Heart Beat Rate Monitor Ultrasonic Detector P3

• Household Fetal Doppler Baby Prenatal Heart Monitor LCD Display Fetus-voice Meter Pregnant Woman Daily Care Product

• This is a quality fetal heart rate detection instrument that uses Doppler principle to obtain fetal heart rate from the pregnant woman's abdomen, and presents fetal

  heart rate data through voice monitoring, digital display and other ways. You can use it to hear fetal heart sound and calculate FHR to achieve pre-monitoring and fetus

  caring.

Features:

• High sensitivity probe, no radiation, low-ultrasound power, safety and with high accuracy.

• Large LED display, you can see the fetal heart rate, battery capacity, and volumes clearly.

• Equipped with volumes adjustable function, you can adjust the volumes easily according to your demands.

• Insert the 3.5mm 32 mono or dual channel headphone plug into the headphone jack of the device, you can use the headphone to listen to fetal heart sound, at the same

  time, the external speaker of the device will be closed, without any sound output.

• After hearing a recognizable, rhythmic fetal heart rate sound, keep the probe stationary for at least 5 seconds so that the device can measure and display the fetal

  heart rate correctly.

• Powered by two sections of AA battery, support continuous operation.(battery is not included)

Note:

1. The normal fetal heart rate r-ange is 120-160bpm.

2. 100-120bpm and 160-180bpm are critical intervals, which should be paid attention to.

Specifications:

• Name: Fetus-voice Meter

• Material: ABS

• Color: white + pink

• Battery: 2 * AA battery (not included)

• Earphone: 3.5mm 32 Mono -or dual-channel headphones(not included)

• Ultrasonic-operating frequency: 3.0MHz

• The deviation between the ultrasonic-working frequency and the nominal ultrasonic-working frequency: should not be more than ±15%

• Overall sensitivity: 290dB (At a distance of 200mm from the probe surface, the comprehensive sensitivity)

• Fetal heart rate measurement and display-range: should not be less than 65-210BPM

• The speed of sound: 1520- 1620m/s

• Acoustic impedance: 1.5- 1.7 x 106 Pa.s/m

• Acoustic attenuation : < 0.05dB/(cm.MHz)

• Working environment:

• Temperature: 5°C-40℃

• Relative humidity : 25-80% RH

• Atmospheric pressure: 70kPa-106kPa2

• Storage and transportation:

• Temperature: 5℃-45℃

• Relative humidity: 9-85% RH

• Atmospheric pressure: 50kPa-106kPa

• Viscosity: >15Pa.S

• PH value: 5.5-8

• Service altitude <2000m

• Package weight: 160g / 5.64ounce

Packing List:

• 1 x Fetal Doppler(without box)(not included Headphones)

Note: 

1. The product does not contain any couplant. We recommend using a couplant instead of the common aloe vera gel, also known as ultrasonic couplant.

2. The new version sold now does not have a headphone jack.

3. Due to transportation problem, the battery is not included, if you mind, please do not buy!

4. Please allow 1-3CM differs due to manual measurement.

5. Due to the light and screen difference, the item's color may be slightly different from the pictures. Thanks for your understanding and happy purchases!