1. With this cable, you can connect your power bank to Blood Pressure Monitor,No need AA battery any more,save money.
2. Use this cable, you can supply your sphygmomanometer and more 6V device by USB adapter
3. For other 6V Device (power Less than 1000mA)
4.Power supply from USB charger,power bank,car charger and more USB adapter.
5.Some mobile power bank sources have an automatic power-off function, and the output current of 90mA will automatically power off. It is recommended to use wall USB Adapter.
Fit for Electronic Blood Pressure Monitor BP742 5 Series