The Bistos BT220 Fetal Doppler is a reliable and high-performance doppler designed for clear and accurate fetal heart rate monitoring. Featuring a 2.4-inch mono LCD display, the BT220 provides easy-to-read heart rate data for both the fetus and the mother. Additionally, the high-sensitivity doppler probe (available in 2 or 3 MHz) ensures precise detection, while the waterproof probe enhances versatility for various clinical settings. Designed for convenience, the BT220 Fetal Doppler comes with an optional rechargeable battery, making it an excellent choice for both clinical and home use.