Overtone 6200 is a small and lightweight fetal monitor for the monitoring of the unborn child. Two versions allow the best choice for optimal functional configuration: prenatal diagnosis of an unborn child or twins and diagnosis of an unborn child before and during birth. There is a possibility of connection to the central monitoring station via network connector.


    • Foldable 5.6" color TFT screen
    • Large numeric and waveform display
    • Backup memory for seamless monitoring
    • FHR signal quality indicator
    • Signal overlap verification to separate FHR of twins
    • Built-in thermo printer
    • Fast printing of stored traces
    • Long-life Li-ion battery
    • PC management software and Central Monitoring System supportive
    • Convenient probe rack and compact design
    • USB port enables memory expansion
    • Portable and lightweight (3.5 kg)
    • 60-hours data storage
    • Built-in CTG analysis system (optional)




Overtone 6200

Ultrasound technique

 Ultrasound pulse doppler with  autocorrelation

Ultrasound frequency

 (1.0± 10%)MHz

FHR range

50 bpm – 240 bpm

Invasive TOCO:


Pressure measurement range

0-100 mmHg

Zero mode


Fetus EKG Method

„beat by beat“

Fetal movement measurement:

 manual transducer

Automatic fetal movement mark                                                                               

Manual fetal movement mark

ultrasound transducer



Inclination’s angle

0 - 90º


320 x 240 /640×480

Failure alarm indication

Over temperature/ power failure/ setting and so on


Built-in, long- life thermal printer

Print speed

1,2,3 cm/min (optional)

Thermosensive paper

Z-Typ, 150 mm ; 152 mm

Data transference interface

RS-232 and RS-485, local network support


Software for the data assessement, storage  and printing 


Rechargable, Li-Ion

Rated storage

6000 mAh

Rated voltage

14,8 V

Working time

 >7 hours (depending on configuration)

Current supply

220 V, 50 Hz

Electrical protection class

Klasse I


350 x 300 x 104 mm






Model types


Overtone 6200-01

FHR1, TOCO monitoring, fetal movement (MFM/AFM), graphical parameters, printer

Overtone 6200-02

FHR1/FHR2, TOCO monitoring, fetal movement (MFM/AFM), graphical parameters, printer

Overtone 6200-03



Overtone 6200-04




FHR1, TOCO monitoring, fetal movement (MFM/AFM), DECG, IUP, graphical parameters, printer


FHR1/FHR2, TOCO monitoring, fetal movement (MFM/AFM),  DECG, IUP, grphical parameters, printer

Basic service