Laser Measures v's Ultra Sonic Measures

Laser Measures v's Ultra Sonic Measures from Mobile Cad Surveying

By: Mobile Cad Surveying  15/03/2009
Keywords: surveying, CAD Design, Measured Building Surveys

Ultra Sonic
• Used for estimating only, not for accurate measuring
• Poor accuracy and limited measuring range (typical 15 metres) due to spreading of sound waves
• Unable to pinpoint precise measurement point
• Obstructions such as furniture, machinery, people, etc. will interfere with sound waves
• Does not work well outside
• Some units have a laser, uses the LASER TO POINT, NOT TO MEASURE !
The attraction of the ultrasonic unit is its compact size and low price, but…
…they are not accurate and not reliable !!!

Laser Measures

Leica DISTO Laser Measures

• Highly accurate measuring tool, accuracy ±1.5mm
• Measuring range up to 200 metres (656 feet)
• The visible laser dot shows the precise measurement point - excellent when obstructions are present
• Can be used in all environments and all conditions, inside and outside

For ease of use, reliable accuracy and more importantly, time saving,
always measure with a Laser Measure

Keywords: CAD Design, CAD for site, disto d2, laser measures, Measured Building Surveys, photographic facade survey, sitemaster building training, sitemaster elevations, surveying,