? Fetal heart rate (FHR), uterus constriction (TOCO) and fetal movement (FM) ? 5.7 Inches blue background LCD screen with high resolution and luminence ? Recording all the parameters in graphic tendency curves as well as numeric data ? Alarm on probe off-position, abnormal FHR. Adjustable FHR alarming system ? Built-in thermal printer with 3-grade (1,2 and 3 cm/min) tracing speed ? Built-in network connection capability ? Twins monitoring function (option)