Display
LCD
Low Battery Display
Signal Quality Display

Audio Output for earphone

Auto Shut-Off
5 minutes

Heart Rate Range
FHR Accuracy +/- 2% of Range

Auto Shut-Off Signal
1 minute

Ultrasound Frequency
2 MHz

Power
2 x 1.5V AA Batteries

Ultrasound Intensity
<10mW

Sensitivity
16 weeks onwards

Speaker Output power
1.2 W Built in Loudspeaker

PC Interface
Sound Card