Function 1.Compact design, it can be placed horizontally or hung on the wall. 2.Color LCD, 60° convertible screen 3.Display monitoring curve and data clearly 4.Area mark for normal FHR(120 BPM~160 BPM). 5.Manual record for fetal movement. 6.Alarm for abnormal FHR 7.Real-time monitoring for continuous 24 hours. 8.Storage, playback and print the monitoring curve for continuous 12 hours. 9.Optional interface languages: Chinese and English. 10.Optional twins monitoring. 11.9-crystal and broad beam transducer. 12.Extra long-life and high-resolution built-in thermal printer. 13.Communicate with central monitoring system by the built-in RJ45.