The Nicolet Elite hand-held Dopplers from Natus offer both audio only options and dopplers with heart rate display for both obstetric and vascular applications. Elite dopplers offer the features you're looking for in a hand-held Doppler. Use the 2 MHz or 3 MHz obstetric probes to hear the fetal heartbeat. Use the flat 5 MHz or pencil tip 8 MHz vascular probes to screen patients at risk for stroke, peripheral arterial disease and other occlusive vascular conditions or to monitor difficult pulses and obtain systolic blood pressures quickly and easily. The optional digital readout utilizes autocorrelation, a pattern recognition technique that accurately tracks the heart rate. The Elite offers an optional recharger to reduce battery replacement.