- Detect the blood stream status of arterial/venous by 8.0 MHz probe; detect the blood flow average velocity, detect the result of finger/toes and part of body's vein on operation.

- ARV-520 with 20 bits green LED bar to indicate the blood stream strength.

- Battery and adapter: 7.4 V Li-ion rechargeable batteries

- Adapter input voltage: 220V ± 10%, 50 Hz ± 1 Hz (or AC 110 V ±10%, 60 Hz ±1 Hz)

- Adapter output voltage: DC 9 V / 250 mA

- Ultrasonic frequency: 8.0MHz±20%

- Speed measuring range: 0--100 cm/s; (comparative error ±20%)

- Overall gain: ＞90 dB

- Doppler frequency band: 300-7000 Hz ±20%

- Audio output power: ≥100 mW

charger, 60g Gel, Gallus, portable soft handbag. (Option: 5.0 MHz probe, earphone)

6PCS/CTN, 49*26*33CM, 5KG/CTN