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℃