# High Stdev issue using laser_height_estimation

I was trying to use laser_height_estimation, nevertheless, I obtained the following warning(It's an error, indeed):

```
[ WARN] [1331374177.626411632]: Stdev of height readings too big to determine height, skipping (stdev is 4.373286, max is 0.100000)
[ WARN] [1331374177.826413613]: Stdev of height readings too big to determine height, skipping (stdev is 4.359676, max is 0.100000)
[ WARN] [1331374178.026414126]: Stdev of height readings too big to determine height, skipping (stdev is 4.382531, max is 0.100000)
```

Is this a limitation of this package when we have a high standard deviation or any remedy for this one?

Thanks in advance.