diff --git a/modbus_tk/modbus_rtu.py b/modbus_tk/modbus_rtu.py
index 11c9ee8..1b16eeb 100644
--- a/modbus_tk/modbus_rtu.py
+++ b/modbus_tk/modbus_rtu.py
@@ -274,6 +274,8 @@ def _do_run(self):
 
             # Read rest of the request
             while True:
+                # Add delays to avoid corrupting packages. (For use with FT232-RS485 device.)
+                time.sleep(0.001)
                 try:
                     read_bytes = self._serial.read(128)
                     if not read_bytes: