| Safe: Ultrasound dosage is under 50% of the standard. Portable: light measure, handset, portable. LCD display: LCD display FHR Loudspeaker: Built-in loudspeaker & clearly Power off: Auto- power off function. Working time: Adopt with recharger battery, constantly working 10 hours over when full of recharger. Sensitivity: Monitor 9 weeks above unborn baby’s blood wall pulsate. Three model account: Real-time, ten seconds average & handly account the FHR. Specification Probe: Solid and durable, anti-shock and anti-falling down. Power: DC 7.2V Size: 133mm*85mm*31mm Weight:Main body 0.12kg Temperature: 5℃-40℃ Humidity: 0-85% |