1. White backlight LCD can display FHR for darkness use: show the probe working frequency, battery capacity, Doppler signal and alarm indicator; user friendly interface makes easy operation.
2. Output jack can be connected to instruments. ( headset )
3. Sound amplified and recorded function.
4. Clear sound with a high quality loudspeaker.
6. 1.5V batteries be chosen by alkaline battery or rechargeable batteries.
Specification
1. Executive Standard:EN61266:1995
2. Ultrasonic frequency:2.0 MHz(Standard) 3.0MHz/5.0MHz/8.0MHz(Optional),error: ± 10%
3. Ultrasonic power intensity:≤10mW/cm2
4. Comprehensive Sensitivity: ≥90dB
5. Measurement range: 50bpm–210 bpm Error: ±2bpm
6. Isptp:≤0.1Mpa
7. Doppler Frequency: 0-3KHz
8. Power Consumption:≤1.5W
9. Power off automatically: after 3 minutes
10. Working Mode: Continuous ultrasound Doppler
11. Working temperature: 5-40℃
12. Humidity:< 80%
13. Atmospheric pressure:86-106kPa
14. Power Supply: Size 5 alkalescency battery(1.5V x3) (alkalescency battery isn't rechargeable)