urm 05 & urm 06 ultrasonic

hi
i have a one question about urm 05 & urm 06.
this modules is Really measured 10 meter of distance?
Has been tested?
What conditions that allow these modules measure 10 meters?
i want Setting up this modules with arduino and measurement 10 meter of distance in tank water
thanks
i have a one question about urm 05 & urm 06.
this modules is Really measured 10 meter of distance?
Has been tested?
What conditions that allow these modules measure 10 meters?
i want Setting up this modules with arduino and measurement 10 meter of distance in tank water
thanks