1. TRFM-21D measure: maternal ECG, SPO2, TEMP, HR, PR, NIBP, Twin FHR , TOCO, MFM, AFM
2. TRFM-21B measure: Twin FHR , TOCO, MFM, AFM
3. Foldable 12.1 "(1024×768 pixel) color TFT-LCD,optional touch screen
4. Built-in high speed thermal printer, printing width can be set to 112mm,150mm
5. Twin ultrasound monitoring capability
6. Internal Li-ion battery power or AC power from external power supply