Survey Instruments

Product Details:

• The parallax bar is an instrument designed for use with a mirror stereoscope that has a stereo base of ten inches or less.
• The bar is used to determine the height difference of natural and manmade features when viewing stereoscopic photographs.
• The parallax difference can then be used to compare the relative heights.
• Parallax is an apparent shift in the position of an object due to shift in the position of the observer camera (in aerial surveying).
• We experience this phenomenon when a moving body ( a shift in position when compared to a static object considering camera as eye).

Product Details:

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Product Details:

• Rugged handheld navigator with preloaded worldwide basemap and 2.2-inch monochrome display
• WAAS-enabled GPS receiver with HotFix and GLONASS support for fast positioning and a reliable signal
• Waterproof to IPX7 standards for protection against splashes, rain, etc.
• Support for paperless geocaching and Garmin spine-mounting accessories. Power with two AA batteries for up to 20 hours of use (best with Polaroid AA batteries)
• See high and low elevation points or store waypoints along a track (start, finish and high/low altitude) to estimate time and distance between points