Weltouch Cy-210b Manual -

| Button | Press (short) | Press & Hold (long) | |--------|--------------|----------------------| | | Turn on/off | N/A | | MODE | Change weighing unit (g → oz → ozt → dwt → ct → gn) | Enter calibration mode | | TARE | Subtract container weight (reset to zero) | N/A | | PCS | Activate piece-counting mode | Adjust backlight or auto-off time (depending on firmware) |

If your model has a USB port (check the label), yes. However, the manual warns that noisy USB power may affect precision – use batteries for critical measurements. weltouch cy-210b manual