Fetas Heatbeat Doppler Monitor for Home Use Pegnancy Pocket Doppler Hart Monitor Baeby Hart Monitor

Easy to use, with a built in speaker in fantastic audio quality. You can save these sweet first memories with your own recorder with audio input from this doppler. Safety standards: 1.Symbols IEC 60601-1 "Medical electrical equipment Part I: General requirements for safety"2.Comply with IEC 60601-2-37 "Medical electrical equipment - Part 2-37: Ultrasound diagnostic and monitoring equipment safety requirements"3.Comply with IEC 60601-1-2 "Medical electrical equipment Part 1-2: General requirements for safety Collateral standards: electromagnetic compatibility requirements and testing" Specification: Size: 138mm x 96mm x 32mm Weight: 150±20g (with battery) Working Environment:Temperature: 5 ℃ ~ 40 ℃ Humidity: ≤80% Atmospheric Pressure: 86KPa ~ 106KPa Storage and Transportation: Temperature between -10 ℃ ~ 55 ℃ Humidity:＜93% RH Atmospheric Pressure: 86KPa ~ 106KPa Display Screen: 35mm x 28mm Power: DC 3V (2 x AA) alkaline batteries General Sensitivity: At a distance of 200mm from the probe surface, the general sensitivity is 91 dB Display Range: Shows the range of 50-210bpm. In the range of 50-210 bpm, the error is ± 2bpm (digital display) Ultrasonic Output Power: 20mW Skin Irritation: None Sound Speed: 1520-1620m/s Acoustic Impedance: 1.5-1.7x106Pa.s/m Acoustic Attenuation: 0.05dB/(cm. MHz) Viscosity: 15Pa.s PH Value: 5.5-8 Working Frequency: 2.5MHz±15% Peak Negative Pressure: 20.0KPa Output Beam Intensity Lob: 8.51mW/cm2 Spatial peak time average derived sound intensity Ispat: 7.00mW/cm2 Package: 1 x Main Monitor1 x Ultrasonic Transducer 1 x User Manual1 x Free Gift Bottle Opener

Simple design for easy to use at home.The built-in speaker with volume control and backlit LCD display help to find the position quickly.3 Display mode on backlit LCD display; Built-in clear speaker with volume control and earphone port available for listening quietly; Automatic shut off function after 1-minute preserves batteries.High sensitivity, 0 radiation, convenient measurement (low power, 0 micro radiation, high performance, intelligent dynamic monitoring)