diff --git a/example/main.cpp b/example/main.cpp
index 1a28e85..513352c 100644
--- a/example/main.cpp
+++ b/example/main.cpp
@@ -18,13 +18,16 @@ int main() {
     cmd.T     = 0.0;
     serial.sendRecv(&cmd,&data);
 
-    std::cout <<  std::endl;
-    std::cout <<  "motor.Pos: "    << data.Pos    <<  std::endl;
-    std::cout <<  "motor.Temp: "   << data.Temp   <<  std::endl;
-    std::cout <<  "motor.W: "      << data.W      <<  std::endl;
-    std::cout <<  "motor.T: "      << data.T      <<  std::endl;
-    std::cout <<  "motor.MError: " << data.MError <<  std::endl;
-    std::cout <<  std::endl;
+    if(data.correct == true)
+    {
+      std::cout <<  std::endl;
+      std::cout <<  "motor.Pos: "    << data.Pos    << " rad" << std::endl;
+      std::cout <<  "motor.Temp: "   << data.Temp   << " ℃"  << std::endl;
+      std::cout <<  "motor.W: "      << data.W      << " rad/s"<<std::endl;
+      std::cout <<  "motor.T: "      << data.T      << " N.m" << std::endl;
+      std::cout <<  "motor.MError: " << data.MError <<  std::endl;
+      std::cout <<  std::endl;
+    }
 
     usleep(200);