Set-up
Congratulations!. You now own a First Alert Brand Indoor/
Outdoor Wireless RF Weather Station - Model FWS-105.
This unit can receive and display temperature signals from
up to 3 remote sensors. It can also identify changes in
humidity and predict weather conditions for a 24 hr. period.
Both the Weather Station (receiving unit) and the Remote sensor
(sending unit) require batteries. Insert the batteries in the Weather
Station before doing so for the remote units.
To Install Batteries in your Weather Station
1 Remove the base stand. Press the door tab and slide down the
battery cover on the back of the main unit. Insert 2 AA size
batteries according to the “+” and “-” polarity marks shown in the
battery compartment.
2 The (—) dash icon will flash on the LCD screen. The main unit is
now ready to register with and receive the RF temperature signal
from the remote sensor(s).
Battery Installation for your Wireless Remote Sensor
1 Lift off the bracket stand of the RF remote sensor, then use a
small Philips screwdriver to remove the battery cover screws.
2 Insert 2 AAA size batteries according to the “+” and “-” polarity
marks shown in the battery compartment.
3 Once the batteries are inserted, the sensor will transmit the
temperature signal to the receiving unit at 30 second intervals or
when there is a 0.2°C change in temperature. The sensor is also
equipped with a manual transmission button (TX) located in the
battery compartment. To operate, use a ball point pen or other
pointed tool to press the TX button for 2 seconds.
4 Once the main unit has received the temperature signal, the icon
“ 1 “ and the temperature of the corresponding sensor will be
displayed on the lower part of the screen.
5 If you have more than one remote sensor, please do not insert
batteries for all remote sensors at the same time. After
registration of the
first sensor is
completed (i.e. the
temperature is
displayed on the
screen), then
insert the batteries
for the second
sensor and
complete registration before proceeding with the third sensor.
NOTE
: In order to protect our environment, please dispose the
old batteries promptly and properly. Do not burn or bury them.
Before replacing the back cover, try the test described in the
Operations section of the manual to make sure the two units are
communicating.
For wireless remote sensor with attachable probe only
If measurement of water, soil, or liquid is desired, open the cover of
the plug hole at the side of the sensor and insert the probe plug.
• If the outdoor temperature is extremely low (below 10°C), extend
the 6 foot probe cord outdoors, and keep the remote sensor unit
indoors to avoid freezing up the battery.
• The temperature readings will be displayed on the remote channel
matching the remote sensor where the probe has been inserted.
To ensure proper operation, please read this instruction
manual carefully and keep for future reference.
Troubleshooting
If the display for a particular channel shows a dash (—), check: the
following items:
• The remote unit of that channel is still in place and connected.
• The batteries of both units are fresh. Replace as necessary.
• The transmission is within range and path is clear of obstacles and
interference. Shorten the distance when necessary.
• Avoid signals from other household devices, such as home security
systems and entry controls, that may interfere with this product and
cause temporary reception failure. This is normal and it doesn’t affect
the general performance of the product. Temperature transmission
and reception of readings will resume once interference recedes.
The main unit and remote sensor contain no user serviceable parts
Precautions
1. Do not clean the units with abrasive or corrosive compounds. It
may scratch the plastic parts and corrode the electronic circuits.
2. Do not subject the units to excessive force shock, dust,
temperature or humidity, which may result in malfunction, shorter
electronic life span, damaged batteries and distorted parts.
3. Do not tamper with the units’ internal components. Doing so will
invalidate the warranty on the unit and may cause unnecessary
damage battery and distorted parts.
4. Do not subject the units to excessive exposure to direct sunlight.
5. Never immerse in water or expose to heavy rain. The remote
sensor is of a splash-proof design.
6. Always read the user’s manual before operating the unit.
A.
Channel RF
B. Alert button
C. Set button
D. A1/A2 button
E. Max/Min button
F. Alarm on/off and + button
G. T1/T2 and - button
FCC WARNING!
This equipment generates and uses radio frequency energy and if not
installed and used properly, that is, within strict accordance with the
manufacturer’s instructions, may cause interference to radio and television
reception. It has been tested and found to comply with the limits of a
Class B digital device in accordance with Part 15 of FCC rules, which are
designed to provide reasonable protection against such interference in a
residential installation. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct
the interference by one or more of the following measures:
1. Reorient the TV/ radio antenna.
2. Relocate the receiver away from the TV/radio receiver.
If necessary, the user should consult the dealer or an experienced radio/
television technician for additional suggestions.
The user may find the following booklet prepared by the Federal
Communications Commission helpful: “How to Identify and Resolve TV
Interference Problems”. This booklet is available from the U.S.
Government Printing Office, Washington, D.C. 204502, Stock No. 004-
000-00345-4
FCC Notice
The user is cautioned that changes or modifications not expressly
approved by the manufacturer could void the user’s authority to
operate the equipment. Linear radio controls provide a reliable
communications link and fill an important need in portable wireless
signaling. However, there are some limitations which must be
observed.
For U. S. installations only: The radios are required to comply with
FCC Rules and Regulations as Part 15 devices. As such they have a
limited transmitter power and therefore limited range. A receiver cannot
respond to more than one transmitted signal at a time and may be
blocked by radio signals that occur on or near their operating
frequencies. Changes or modifications to the device may void FCC
compliance. Infrequently used radio links should be tested regularly to
protect against undetected interference or fault.
Time of day clock
Date and Day
Weather forecast
Remote sensor indicator
Outdoor/remote
temperature
Indoor temperature
Relative Humidity
A
B
C
D
E
F
G
Wireless RF
Weather
Station
with remote sensor
User Manual for Model FWS-105
140 Pennsylvania Ave.
Bldg. #5
Oakmont, PA 15139 USA
Phone: 800-345-7462
www.simacorp.com
First Alert
®
is a registered trademark of the First Alert Trust
used under license
© 2003 Sima Products Corporation All rights reserved
