Model Number: STS-FM001-#0671 Brand Name: SENTANSHA Key Specifications/Special Features: Fetal dopplerPortable and light weight, easy to operateLCD data display with backlightDSP technique is applied for real-time calculation of FHRHigh sensitive transducer, low ultrasound powerBuilt-in rechargeable batteryStandard configurationFHR probe/rechargeable battery/charger/gelOptional configurationFHR waveform display/maternal SpO₂and PR