Sonoline B Fetal Doppler Many expecting mothers worry about their unborn baby during pregnancy. For these worried mothers, it can be very reassuring to have a fetal doppler system at home, especially the popular Sonoline B Fetal Doppler, which comes direct from Global Care Market and Contec. About This Fetal Doppler Heart Monitor The Sonoline B Fetal Doppler is a hand-held device, which can be used in hospital, clinic and home for daily self-check by pregnant woman. Our Sonoline B Fetal Doppler is a high performance model of fetal heart monitor that has 3 work modes: real-time heart rate monitoring mode, average heart rate monitoring mode, and manual monitoring and display mode. It has audio output and can be connected with earphones or an external sound recorder. Product Specifications Product Name: Sonoline B Fetal Doppler with Digital LCD Display Has 3 different modes for use in hospital, clinic, and at home for daily self-check Suitable Using Range: Suitable for use after the 12th week of pregnancy Doppler Type: Internally powered, portable style, Type B FHR Measuring Range: 50 ~ 240 BPM (BPM: beats per minute) Resolution: 1 BPM Accuracy: 2 BPM Working Mode: Continuous wave doppler Probe Nominal Frequency: 2.0 MHz Power Supply: Two 1.5V (AA size) alkaline battery If you need some ultrasound gel, visit the link for Ultrasound Gel here. Package Contents 1 x Fetal Doppler 1 x User Manual