Feature：BFM-700A is single fetal / maternal monitor.BFM-700M is fetal / maternal monitor for twins. 5.7 inches TFT LCD displays US and UC data, mother's NIBP, TEMP, RR, SpO2, and ECG main parameters and monitoring trace curve etc.; FHR collects signal indication, alarm indication for abnormal FHR, fetal movement indication, and can freeze monitoring status; Can set the time limit (0-99 minutes), automatically entering dormant state if no signal input; Store monitoring data for 24 hours, with replay function; Coding keyboard adjusts all parameters setting of the unit, convenient to use; Adopt 832 thermal linear array printer, store the data and print rapidly; and printing width is 112mm; The printer parameters can be adjusted according to user needs, including printing paper speed, trace line thickness, signal sampling rate, upper and lower alarming limit, real time, and date; Set-up data and parameters can be automatically saved after power off; The monitoring data can be conveyed to exterior computer through RS-232 or USB port; Trolly (adjustable) for option, convenient to move and operate.Specifications:1.  US：Transducer ：  9 crystals, wide wave beamWorking mode: Pulsed ultrasound DopplerUltrasonic frequency: 1.0MHz±10%Measuring range:    50-240 BPMAlarm range:  Up: 55-240 BPM  Adjustable continuously within range                       Low: 50-235 BPM  Adjustable continuously within range 2.  TOCO：Display range: 0-100units  (non-linear error: ≤±10%) 3.  PC PORT：Edition USB 1.1 or USB 2.0; RS-232 4. THERMAL RECORDER：Paper width : 112 ± 2mm ；effective record width : 105 ± 2mm;  Paper length : 15mRecorder density :  US:  27 BPM/ CM ;   UC:  40 BPM / CMPrinting speed (adjustable):  1 cm/min, 2 cm/min, 3 cm/min 5. POWER and BATTERY：Battery: 16.8V Ni-MH rechargeable batteries group;  AC 220 /110 V ;  Consume power: ≤ 60 WContinuous working time in static condition: ≥ 1 hours 6.ECG and HR： Measuring range: 30 BPM -350 BPMCardiac electric noise level: ≤ 30 μVCardiac electric frequency response:Filtering mode: 1-25 MHzNon-filtering mode: 0.05-100 MHz Cardiac electric Input loop current: ≤ 0.1 μA 7.NIBP：Measuring range:a) SBP: (8.0—34.0) kPa or (60—255) mmHgb) DBP: (4.0—26.0) kPa or (30—195) mmHgc) MAP: (5.3—28.7) kPa or (40—215) mmHgAutomatic measuring interval: 3 min-99 min adjustable continuously within rangeinterval error: ≤ ±10 s 8.RR： Measuring  range: 0 BPM-100 BPM 9.TEMP：Channels: 1TEMP probe: surface probe 1pcsMeasuring range: 28℃-45 ℃Response time: ≤30s 10.SpO2：Measuring range: 0-99% 11.PR：Measuring range: 30-250 BPM 12.ENVIROANMENT REQUIREMENT： Working Temperature: +5 ℃-40 ℃  Humidity: ≤80%  Atmospheric pressure: 86 kPa—106 kPa