maternal/fetal monitor Features: Probe: Solid and durable, anti-shock and anti-fallind down. Patent: Special fetus awaking function within FHR probe. Safe: Ultrasound dosage is under 50% of the safe standard. Convenient: Doctors can use it freely without professional training. Effcient: More advanced zero adjustment of TOCO, thoroughly avoid trouble during binding TOCO probe. Protable: Small size, convenient for multi bed monitoring and outside diagnosing. Three to one design: Special three to one design, avoid twisting among FHR probe, TOCO probe, fetal movement marker. Tone: Quality speaker take more clear and lound sound. Economical: 58mm usual thermal paper,more economical. Specification:(Grand, & Basic Model) Display: 6 inch LCD screen (Grand Model) Ultrasound : Multi wafer and wide wave-beam. Ultrasound intensity: <5mW/cm2 TOCO transducer: External transducer FHR range: 30-210bpm TOCO range: 0-100(relative unit) Ultrasound frequency: 0.8-2.2MHz±5% Paper: 58mm thermal Power: AC 220V 50Hz Weight: 1.65kg Working condition: Temperature 10°C-45°C Humidity 10-80%