fetal monitor specification:

Main performance
Security:
Anti-shock types: Facilities I, no internal power supply
Anti-electric shock degree: B
Working Voltage: AC 100V- 240V
Frequency: 50Hz/60Hz P<60 VA
Fuse: T1.6AL250VDisplay
Dimensions: 8.0" color LCD display, folding 60 degree display
Content: bed No., pregnancy weeks, age, paper speed, date, time, volume, alarm status, transducer connection status, recorder status, FHR data and wave, contraction data and wave, fetal move times and mark etc.
Print:
Record paper two-double type Z
Print width: 112mm
Valid print width: 104mm
Paper output speed: 1cm/min, 2cm/min, 3cm/min(optional) 
Data precision: ±5%(X Roll), ±1%(Y Roll)
Record content: hospital, bed No., name, pregnancy weeks, patient No., paper speed, date, time, FHR data and wave, contraction data and wave, Fetal move times and mark etc.

Ultrasound probe:
Nominal Frequency: 1.0MHz
Work Frequency: 1.0MHz ±10%
Negative peak sound pressure: p_<1 MPa
Output beam intensity: lob < 20mW/cm2
FHR Rang: 50 BPM~240BPM
Resolution: 1 BPM
Accuracy: ±2 BPM
TOCO
TOCO range: 0~100%
Resolution: 1 %
Nonlinear error: < ± 10%
RZ way: Manually
Fetal Marking
For the manual button(the operation of pregnant women), there will be a mark display
In the bottom area of FHR wave display section.
FHR alarm: Alarm for high and low FHR, which exceeds appointed limit.

fetal monitor picture: