good quality fetal monitor with cheap price LC-602

Instructions   
Fetal Monitor can acquire fetal heart rate, maternal uterine contraction when pregnancies over *8 weeks to provide reference data for clinical use.The monitor can be used individually or connected with PC through RJ*5 Interface for the purpose of central monitoring.
 It is only suitable for the equipment in hospitals, clinics, doctors offices and patients at home by professional medical personnel.
Major Features   
Light dexterous appearance, tops horizontally and walls can be hoisted   
8.0 "screen color LCD display, rotatable screen to *0°   
Display of the patient data and curve clearly   
FHR **0 BPM~**0 BPM normal range label   
Manual records fetal movement   
Sound and color alarm for high and low fetal heart rate   
Continuous **-hour real-time monitoring function   
Continuous **-hour patient curve and data storage , playback and print   
With picture freeze function   
Optional English interface   
Single, Twins Monitoring optional   
9 crystal board band pulsed wave transducer  
Extra-long life, high-resolution built-in thermal recorder   
Built-in communication port, can be connected with central monitoring system.
Main performance   

Working Voltage: AC **0 V~**0 V    Frequency: *0 Hz/*0 Hz    P＜*0 VA    Fuse: T1.6AL**0VDisplay
Dimensions: 8.0 "color LCD display, folding *0 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: **2 mm
Valid Print Width: **4 mm   
Paper output speed: 1 cm/min、2 cm/min、3 cm/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: 1.0 MHz
Work Frequency: 1.0 MHz±*0 %
Negative peak sound pressure : p_＜1 MPa
Output beam intensity : Iob＜*0 mW/cm2
The peak time space peak intensity: Ispta＜**0 mW/cm2
The average time space peak intensity: Isata＜*0 mW/cm2
FHR Rang: *0 BPM~**0 BPM
Resolution: 1 BPM
Accuracy : ±2 BPM