D. INSTRUMENT OVERVIEW
SP341 status LED indi-
cator.
Orange and blinking =
Bluetooth not connected
Green and blinking =
Bluetooth connected
Blinking Red with either
of the above = Low bat-
tery
Using the Rotating Hotwire Probe
1. Take the hotwire probe and rotate it to the “UP” position (see A above).
The back of the SP565 is marked to indicate the rotation direction for”UP”
and “DOWN” (see B above).
2. The hotwire probe can then be extended like an antenna. Pull up on the
sensor housing to extend the probe (see C above).
3. Reverse these steps when storing the SP565.
2
Power Key. Press and
hold to turn the instru-
ment on. Press and
hold to turn the instru-
ment off.
Hot Wire probe in stor-
age position.
SP341 hot wire probe rotated
into measurement position.
The probe can be extended to
reach into ducts and vents.
The probe is laser etched with
measuring marks to indicate
how far into a duct the sensor
is.
Hot wire sensor cage.
Rotate the cage closed to
protect the sensor when
in storage.
Rotate to the open posi-
tion to take measure-
ments.
Rotate the probe
until it is in the
“UP” position.
A
The back of the
SP565 is marked
“UP” and “DN”
indicating rota-
tion direction.
Pull up on the
sensor housing
to extend the
hotwire probe.
B
C
Hot wire sensor is on
top.
Temperature sensor is on
the bottom.
