the unit into TURBO mode. Pressing this button 4 times rapidly sets the TURBO mode and the
LED lowest green light will appear to shimmer.
LOW-BATT LED
The LOW-BATT LED will become lit when there is approximately one hour left on the current
battery charge. During the charging process, this LED will blink off and on until the battery is
fully charged; at that time the LED will turn off and it will signal a fully changed unit.
(NOTE: If desired the TDS-II will fully operate when the battery is being charged)
TERMITE DETECTION PROCEDURE
The TDS-II electronics warm-up and self calibration takes 30 seconds. Completion of this start
up process is signaled by a rapid flashing of the bar graph LEDs followed by a continuous 1
second beep. The unit will default to medium (M) sensitivity at start up. The user may chose to
change the sensitivity, MUTE or PEAK functions at this time or at any time during operation and
the change will take place instantaneously.
The TDS-II will equalize to its current background (or ambient) condition. So even with an
elevation of termites’ gases in the surrounding air it will only detect on areas that exceed this
current background. This will enable the user to detect the location of large concentrations and
not trigger on false signals.
Detection of Termites in Closed Spaces
Often large concentrations of termites can be found in wall spaces. Here the gases they
produce will be largely trapped and creating a different atmosphere than the surrounding area.
This is the easiest type of termite infestation to detect. Since the gases given off are heavier
than air they will tend to sink to the bottom of the enclosed area. If this area is wall space
detection may be triggered by checking along base boards or in electrical outlet boxes. Move
the TDS-II probe tip slowly along a suspected area (2-3 inches per second). If a signal occurs
go back to the area and check closer. Subsequent positive signals at suspected area strongly
suggests the presents of termites.
If closer inspection of the area is warranted, a small 1/8 – 5/32 inch hole can be drilled into the
wall space for inspection. Using the needle nose probe insert it in the hole for inspection of any
termite gases. If termites are detected an audio signal will sound and the graph bar LEDs will be
Summary of Contents for TDS-II
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