Technical Specification
1.Ultrasound frequency: 2MHz/2.5MHz/3MHz
2.Ultrasound intensity: <10mW/cm²
3.Power supply:2pcs 1.5V AA battery
2pcs DC Ni-MH rechargeable battery AC 220/110V. 50/60Hz (for D ad C)
4.FHR Measuring range: 50-240bpm
5.FHR resolution: 1bpm
6.FHR accuracy: +1bpm
7.Power consumption: <2W
