La Crosse Technology TX3TH User Manual

433MHz Thermo Hygro Outdoor Transmitter

for use with the Weather Station

Congratulations on purchasing this optional 433 MHz Thermo Hygro Outdoor
Transmitter for use with the Weather Station. Please read the following
information to ensure that this transmitter works correctly.

Outdoor
temperature
display in ºC

FEATURES OF THE THERMO HYGRO OUTDOOR TRANSMITTER

Outdoor relative humidity display in %

• Remote transmission of outdoor temperature and outdoor relative
humidity via 433MHz to base Weather Station.

• LCD display showing current outdoor temperature in Celsius (ºC) and
current outdoor relative humidity in RH (%).

• Wall mounting holder.

SETTING UP:

Before activating the Thermo Hygro Outdoor Transmitter for use with the
base receiver Weather Station, ensure all batteries are removed from each of
the units for at least 30 seconds before proceeding with these steps:

1. Insert 2 x AA, IEC LR6, 1.5V batteries, observing correct polarity, into
the battery compartment of the Weather Station.

2. Unscrew the screw on the back of the Thermo Hygro Outdoor
Transmitter compartment and remove the cover.

3. Insert the 2 x AAA, IEC LR3, 1.5V batteries, observing correct polarity,
into the battery compartment.

4. Replace battery cover on unit and seal by re-screwing.

5. Repeat step 2-4 for each additional Thermo Hygro Outdoor Transmitter.

Immediately after power-up, the LCD segments will light up briefly on the
base receiver Weather Station before displaying the current outdoor
temperature in °C and the current outdoor relative humidity in %. When the
Thermo Hygro Outdoor Transmitter has transmitted data by 433MHz, it will
register accordingly on the LCD of the base receiver. For full operating
instructions, please refer to the main instruction manual for the Weather
Station.

Notes:

• Setting up should not take longer than three minutes to complete
otherwise start up problems may occur.

•

When installing the batteries always check the correct polarity before
inserting and ensure the batteries do not sprin g free from the contacts
otherwise start up problems may occur.

Instructions Manual

Holder

Battery cover

•

If setting up has taken over three minutes, then reset the units (see

“Resetting” below).

433MHZ SIGNAL RECEPTION

If the outdoor temperature and the outdoor relative humidity are not received
by the base Weather Station thrice after setting up, the display on the
Weather Station will show “- - - °C” and “- - %”, please check the following
points:

1. Distance transmitters at least 2 meters away from any interfering
sources such as computer monitors or TV sets or antennas

2. Avoid placing the temperature transmitter onto or in the immediate
proximity of metal window frames.

3. Using other electrical products such as headphones or speakers
operating on the 433MHz frequency may prevent reception of the
transmitted data. Interference can also be caused by neighbours using
similar electrical devices.

AFFIXING THE THERMO HYGRO OUTDOOR TRANSMITTER:

The Thermo Hygro Outdoor Transmitter has a holder and is supplied with
screws and double-sided tape for affixing either by method preferred. Before
securing the transmitter to the desired location, check that the temperature

can be received first.
To affix by screw, follow these steps:

1. Using the holes in the
holder as a guide, mark
the holes on the drilling
surface.

2. Drill the marked area to
the required depth.

3. Screw the holder onto
wall and click the
transmitter into holder.

To affix using double-sided tape, follow these steps:

1. Clean both surfaces before affixing double­sided tape.

2. Peel one side of the tape and press it firmly
against the back of the holder.

3. Now peel the other side of the tape and
stick the holder firmly onto the surface. Do
not stick onto bricks, enamel finished or
greasy surfaces.

Note: Do not secure the transmitter on metal frames or doors because this

may cause interference with 433MHz transmission.

RESETTING

There are times when the receiver unit and the Thermo Hygro Outdoor
Transmitter need to be reset for example a changing of batteries.

1. Remove the batteries from each unit and wait at least 30 seconds

2. Proceed from step 1 in Setting up.
BATTERY CHANGE:

For best performance and running accuracy the batteries of all units should
be replaced at least once a year.

Please help in the preservation of the environment and return used

batteries to an authorized depot only.

MAINTENANCE:

• Avoid locations prone to extreme temperatures, vibration and shock
since these may cause damage and inaccurate readings.

•

Do not submerge any of the units in water or use them

•

Avoid placing the units in any way other than what they have been
designed for.

•

Remove all low powered batteries immediately to avoid leakage and
damage. Replace only with new batteries of the recommended type.

•

Do not make any repairs to the units. Return to the original point of
purchase for repair by qualified personnel.

THERMO HYGRO OUTDOOR TRANSMITTER SPECIFICATIONS:

• Temperature measuring range: -29.9ºC to +69.9ºC with 0.1ºC resolution

•

Relative Humidity measuring range: 1% to 99% with 1% resolution

•

Transmission interval: every 1 minute

•

Transmission frequency: 433.92 MHz

•

Transmission range:25 meters maximum

•

Power Source: 2 x AAA, IEC LR3, 1.5V

•

Dimensions (L x W x ): 56 x 24 x 80 mm

LIABILITY DISCLAIMER:

• The manufacturer and supplier cannot accept any responsibility for any
incorrect readings and any consequences occurring should an
inaccurate reading take place.

•

This product is not to be used for medical purposes or for public
information.

•

The specifications of this product may change without prior notice.

•

This product is not a toy. Keep out children’s reach.

•

No part of this manual may be reproduced without written consent of
the manufacturer.

R&TTE Directive 1999/5/EC

Summary of the Declaration of Conformity : We hereby declare that this wireless
transmission device does comply with the essential requirements of R&TTE
Directive 1999/5/EC.