diff --git a/usbs.rules b/usbs.rules
index 179bcc6..a929d0d 100644
--- a/usbs.rules
+++ b/usbs.rules
@@ -1,2 +1,2 @@
-KERNEL=="tty*", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", MODE:="0777", SYMLINK+="USB_ODO"
-KERNEL=="tty*", ATTRS{idVendor}=="1d6b", ATTRS{idProduct}=="0002", MODE:="0777", SYMLINK+="USB_ACTION"
+KERNEL=="tty*", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", ATTRS{serial}=="208339A24134", MODE:="0777", SYMLINK+="USB_ODO"
+KERNEL=="tty*", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="5740", ATTRS{serial}=="208339A04134", MODE:="0777", SYMLINK+="USB_ACTION"