JRC Handy Search NJJ-95B Instruction Manual page 16

However, the IrDA optical receptors for this unit and the printer must be set
facing each other at a distance of 50 ~ 500 mm (without any obstacles between
them).
(7) Performing real time automatic surface wave processing
Internal fixed surface wave data is used to automatically remove the wave
reflected from the surface of the concrete during scanning enabling the showing
of the reflected wave from rebar.
Furthermore, surface wave processing can be switched to processing that
uses scan data surface waves during scanning (real time manual deduction)
enabling highly accurate surface processing.
(8) Displaying the data of an arbitrary point after scanning (scroll function)
This radar can store 15m woth of data at a time and display the data of
arbitrary points continuously.
(9) Changing sensitivity and performing image processing for scan data
This radar can display scan results after changing sensitivity or performing
image processing
reproduction of original image, fixed surface wave processing, or deduction
processing). Thus, performing a scan test again with a new sensitivity setting is
not necessary.
(10) A mark can be displayed in the scan results using the cursor mark function.
A maximum of 7 cursor marks can be placed in the scan results to display the
scan position and depth of the mark.
(11) Providing the screen inversion function
(11) Screen inversion function is available
In case of scanning from right to left on a wall surface, the display on the
screen is upright (normal). In the case of scanning left to right, the display will
be inverted.
Therefore, the user can achieve the correct display by performing the scan
either right to left or left to right.
(12) Recording of date and settings
The main unit records the date and settings (data number, sensitivity, etc.)
using a backup function. When data is output, the date and settings are
recorded.
(manual surface
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wave processing, peak processing,