Sell BF-500D fetal doppler

BF-500D fetal doppler You May Also Be Interested In: belt bag
Pocket BF-500D with built-in rechargeable battery can work continuously more than 8 hours;
Only 270g and easy to carry with a belt, bag and headset;
2.0MHz probe (optional 5.0MHz probe for umbilical blood stream)
Working frequency: 2.0MHz 1 10%
Ultrasonic intensity:<=5mW/cm2
Power: 9V Ni-MH rechargeable batteries
FHR range: 60-210bpm (12bpm)
Temperature: 100-400
Net Weight /Gross Weight: 260g/800g