Pocket Fetal Doppler（AG-21B）

charger

(Switching power supply)

Input: 100-240V~, 50/60Hz, 500mA

Output: 12V , 1.0A

Battery

1.2Vx6 Ni-MH(AAA) 650mAh

Input power

7.2VA (Charging :12VA)

Rechargeable battery

Continuous work time

about eight hours

Equipment type

Class Ⅱ equipment type: BF

Ultrasonic work frequency

2.5MHz ±2%

Ultrasonic output power

10mW/ cm² maximum The measured is 5mW/cm²

FHR measurement range

50 bpm~240bpm,error±2bpm

Audio output

0.7W

Speaker

Diameter 57mm

External dimension

89mm×168mm×36mm

Weight

0.38kg

Overall sensitivity at the distance 200mm from the face of the probe

≥92dB