Installation; Before You Begin - Honeywell TE821W User Manual

INSTALLATION

The Honeywell Full Weather Station TE821W operates at 433MHz radio frequency, so no wire
installation is required between the main unit (receiver) and the remote weather sensors (transmitters).
The remote weather sensors include a thermo-hygrometer (temperature and humidity) sensor,
anemometer (wind sensor) and a rain gauge (rain sensor). All data measured by these remote sensors is
transmitted to the main unit wirelessly, with the operating range up to 328 feet (100 meters) in the open area.
The Anemometer and a rain gauge must be placed outdoors to measure weather elements.
Remote thermo-hygrometers can be placed indoors or outdoors, depending on the location where the
temperature and humidity are to be measured. If you intend measuring outdoor temperature and
humidity, place the remote sensor outdoors, preferably not in the direct sunlight.
NOTE: It is critical to assemble and power up all of the remote weather sensors BEFORE setting up
the main unit.
NOTE: It is critical to power up and test communication between all of the weather sensors and the
main unit BEFORE permanently mounting them outside.

BEFORE YOU BEGIN

• We recommend using alkaline batteries for the remote weather sensors and the main unit when
temperatures are above 32°F (0°C). We recommend using lithium batteries for the remote
weather sensors when temperatures are below 32°F (0°C).
• Avoid using rechargeable batteries. (Rechargeable batteries cannot maintain correct power
requirements).
• ALWAYS install batteries in the remote weather sensors before the main unit.
• Insert batteries before first use, matching the polarity in the battery compartment
• Remove protective plastic screen from LCD display (if any).
• During an initial setup, place the main unit close to the remote weather sensors.
• After reception is established (all of the remote readings will appear on the main unitʼs display),
position the remote sensors and the main unit within the effective transmission range of up to
328 feet (100 meters). Ideally they should be placed within the line of sight of the main unit. See
placement tips in the user manual for each remote weather sensor separately.
• Transmission range may be affected by trees, metal structures and electronic appliances.
• The main unit must be placed indoors.
• The effective operating range may be influenced by the surrounding building materials and how
the receiver (main unit) and transmitters (weather sensors) are positioned.
• Place the remote weather sensors so that they face the main unit (receiver), minimizing
obstructions such as doors, walls, and furniture.
NOTE: When the temperature falls below freezing, the batteries in the outdoor remote weather
sensors may have reduced voltage supply and a shorter effective range. We recommend using
lithium batteries at temperatures of 32°F (0°C) and below.
IMPORTANT: Make sure that the remote weather sensors are easily accessible for cleaning and
maintenance.We recommend cleaning the remote weather sensors periodically, as the dirt and debris
may affect sensors accuracy.
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