‘Cardiotocographic’ monitors usually detect fetal heart rate, internally, by ultrasound transducer, and uterine contractions, externally, by tocodynamometer. This combination of technologies is routine for antepartum and intrapartum management. There are also machines with electrode and intrauterine pressure sensors for internal monitoring of fetal heart and contraction signals, a more precise way than monitoring externally. These methods are only applicable during labour, however, after cervical dilatation and ruptured membranes, and they do have established contraindications. Our more complex machines offer numerous characteristics popular with customers, like registration of fetal movements, simultaneous monitoring of twins and triplets, continuous monitoring of maternal parameters, and various alarms, digital output options, and telemetry modes. We also offer simpler machines, like basic Doppler monitors. These are popular because they’re portable, some of them hand-held. They don’t cost much, and they may be all you need.