•7" TFT LCD display •FHR,TOCO, FETAL MOVEMENT Alarm for fetal tachycardia or bradycardia, low power and paper missing Built-in Thermal Printer, 152 mm thermal printing paper DSP technology, real-time identify and measurement High sensitive and water-proof FHR transducer 24 hours data storage can be played back and printed Bulit-in 14.8V li-battery