It is is a hand-held obstetrical unit, which can be used in hospital, and home for daily self-check by pregnant woman. It is a high performance model (feta.l heart rate) with LCD digital display. It has 3 work modes: real-time FHR display mode, averaged FHR display mode, and manual mode .It has audio output and can be connected with earphone or recorder with audio input. Mode 1: This mode displays feta.l heart icon when heart beat is detected and also displays the real-time heart rate numerically. Mode 2: This mode displays the heart icon when the heart beat is detected and averages the heart rate for a more stable reading. Mode 3: This mode can calculate an average heart rate over a specific period of time by manually pushing a button to start and stop the time. Probe features: 2MHz or 3MHz water resistant probe ensures a high-sensitivity probe that cannot be damaged by transmission gel The Cord is rubber coated to protect it from the elements and coiled for plenty of stretch The Probe easily detatches from the main unit for storage Earphone jack for listening or attaching doppler to the computer for recording the heartbeat Specification: LCD Display Dimension:39x27mm Speaker power: 1 W Power Supply Built-in rechargeable battery DC, Working voltage: 7.4V, Li-ion battery Continuous operating time: > 5 hours AC recharger Ultrasound Frequency: 2.0MHz continual wave Intensity: P: Measurement range: 30~240BPM of 2.0MHz Measurement accuracy: ±1% or ±1BPM Dimension & Weight: 330 × 230 × 70 mm .0.5kg Package Content: 1 x doppler 1 x English user's manual 1 x Gel
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