lit up. The higher the concentration the more LEDs lit and the longer the duration of the audio
signal and lights.
Detection of Termites in Open Areas
Termites are often found in small concentrations in attic rafters, door or door frames, and wood
furniture. Telltale signs are seen by suspicious holes or droppings. Location of the presence of
termites in these areas can be done with the TDS-II. Use the TDS-II termite detector to probe
these suspicious areas with the needle probe. Termites off gases will escape from there active
channels and will be detectable. In a suspected area a small hole 1/8 – 5/32 inch may be drilled
to attempt to bisect an active chamber. Follow this by inserting the needle probe to look for a
signal. If present both an audio signal and graph bar LEDs will light.
BED BUG DETECTION PROCEDURE
Bed Bugs also produce large amounts of Carbon Dioxide from their digestion of blood.
To begin testing for bed bugs,
your TDS-II unit needs to be set in the super sensitive TURBO
mode. To put the TDS-II unit into this mode of operation, first turn the unit on and allow it to
warm up and be ready for detection. Once it is ready put the unit in high sensitivity mode then
quickly press the PEAK button four times. The TURBO mode is indicated when the lowest LED
green light appears to shimmer. Now the unit is in the highest sensitivity setting. This setting is
super sensitive and will easily alert to the small amount of CO2 produced by the bed bugs.
To test for bed bugs
move the probe slowly near the areas being checked for bed bugs.
(Do not block the probe tip) If a bed bug is hiding within six inches of the probe the
TDS-
II
will indicate its presence. The audible alarm and lights will be triggered as the air
pump draws in an air sample. Once all the air in the bed bugs hiding place is drawn
through the sensors the alarm will stop. It will take 5-10 minutes for the bed bugs to
produce enough gases to set the alarm off again. When the
TDS-II
indicates a bed bug,
further investigation should be performed.
We recommend the method used by most bed
bug dog handlers. M
ark the spot where the alarm sounded and continue checking
other
area
s
. Come back to the spot
where the alarm sounded
in a few minutes and if the alarm
sounds again this strongly indicate
s
a
bed bug
presence
.
If a bed bug is out in the open air its gases will dissipate too rapidly for the
TDS-II
to
detect them. If
a bed bug
is in the open it can be seen and does not need detecting.
A bed bug must be hiding where its emissions can build up for about 5-10 minutes to be
detected.
Summary of Contents for TDS-II
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