Battery type: 2*AA battery
Rated voltage: DC3V
Ultrasonic frequency: 3.0MHz
Waterproof level: IP5
Fetal heart rate range: 50BPM-230BPM
Fetal heart rate measurement accuracy: 2BPM (error<2)
Net weight: about 171g (excluding battery)
Digital/Curve Display Fetal Heart Monitor
Battery type: 2*AA battery
Rated voltage: DC3V
Ultrasonic frequency: 3.0MHz
Waterproof level: IP5
Fetal heart rate range: 50BPM-230BPM
Fetal heart rate measurement accuracy: 2BPM (error<2)
Net weight: about 171g (excluding battery)