Technical Parameters: * Ultrasonic Operating Frequent: 1MHz, ±10%
* FHR Range: 50-240 beats/min
* Uterine contractive pressure: 0~100 unit
* Paper speed: 1,2 , 3cm/min(±3%)
* Operation mode: Manual/Auto
* Recorder : High resolution thermal printer
* Specification of Fuse: T1.6A 250V Ø5×20
* Battery: Built-in rechargeable Li-ion battery 11.1V(2200mAh)
* Recording Paper: 112*100mm Z Fold Thermal Paper
* Machine Size: 307mm×255mm×91mm
Unit Package* 360mm*180mm*300mm
* Gross Weight: 4Kg