XL- MaxSonar®- WR1™ (MB7060) XL- MaxSonar®- WR.
MB7060 - Weather Resistant (IP67) Sonar Range Finder
XL- MaxSonar®- WR1™ (MB7060) XL- MaxSonar®- WRA1™ (MB7070) MB7060 MB7070 Weather Resistant (IP67) Sonar Range Finder with High Power Output, Noise .