ECOWITT WH0280 User manual

Instruction Manual
Wireless Indoor / Outdoor
Thermometer with Indoor Humidity
Model: WH0280

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Contents
1. Introduction...........................................................3
2. Get Started........................................................... 3
2.1 Parts List.................................................. 3
2.2 Recommend Tools..................................4
2.3 Thermometer Sensor Set Up................4
2.4 Display Console Set Up.........................5
2.4.1 Display Console Layout..................... 7
2.4.2 Sensor Operation Verification........... 8
3. Wireless Sensor Installation.............................. 8
3.1 Mounting with Zip Tie............................. 9
3.2 Mounting with Nail or Screw................. 9
4. Console Operation............................................ 10
4.1 Setting for 12/24hr Switch, Time
and °C/°F Switch......................................... 10
4.2 Setting for Alarm Clock........................ 11
4.3 Setting for Min/Max Record................ 12
4.4 Setting for RF Channels...................... 13
5.Sensor Resynchronization................................ 13
6.Best Practices for Wireless Communication.. 13

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7.Specifications...................................................... 14
7.1 Wireless Specifications........................14
7.2 Measurement Specifications...............14
7.3 Power Consumption.............................14
8. FCC Statement.................................................. 15
9.Warranty Information......................................... 17

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1. Introduction
Thanks for your purchasing of the WH0280
Wireless Indoor/Outdoor Thermometer with
Indoor Humidity. To ensure the best product
performance, please read this manual and retain
it for future reference.
2. Get Started
Note: Power up sequence must be performed in
the order shown in this section (insert batteries in
the Remote Sensor first, Display Console
second).
Attention:
Do not mix old and new batteries
Do not mix Alkaline, Standard, Lithium or
Rechargeable batteries
Ensure batteries are installed correctly with
regard to polarity +/-
2.1 Parts List
One Display Console (Receiver)
One remote sensor (Transmitter)
One User Manual

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2.2 Recommend Tools
Hammer for hanging remote thermometer
transmitter.
2.3 Thermometer Sensor Set Up
1. Remove the battery door on the back of the
sensor by sliding the compartment door down,
as shown in Figure 1.
2. Set RF sensor channel.
Figure 1

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3. Insert one AA battery.
4. After inserting the battery, the remote sensor
LED indicator will light for 4 seconds, and
then flash once per 60 seconds thereafter.
Each time it flashes, the sensor is transmitting
data.
5. Close the battery door.
2.4 Display Console Set Up
1. Move the remote thermometer(s) about 2 to
3m away from the display console (if the
sensor is too close, it may not be received by
the display console).
2. Remove the battery door on the back of the
display, as shown in Figure 2. Insert one AA
(alkaline, lithium or rechargeable) battery in
the back of the display console.
1
Wireless transmitter LED
2
1, 2, 3 RF Channels
3
AA Battery
4
Battery Compartment Cover

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Figure 2
1. Integrated Hang Hole Hang Hole
2. Stand Mount
3. CH/+ Button
4. Mode Button
5. Battery Compartment
6. Battery Compartment Cover
All of the LCD segments will light up for a few
seconds to verify all segments are operating
properly.
3. Replace the battery door, and fold out the

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desk stand and place the console in the
upright position.
The console will instantly display indoor
temperature and humidity. The remote
temperature will update on the display within
a few minutes.
While in the search mode, the reception
search icon flash.
If the remote does not update, please contact our
Customer Service for support.
2.4.1 Display Console Layout
Figure 3

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1. Alarm Clock Icon
2. Current Indoor Temperature
3. RF Channels
4. Time
5. Current Indoor Humidity
6. Outdoor Reception Icon
7. Current Outdoor Temperature
2.4.2 Sensor Operation Verification
Verify the indoor and outdoor temperature match
closely with the console and sensor array in the
same location (about 2 to 3m apart). The sensors
should be within 2°F (the accuracy is ± 1°F).
Allow about 30 minutes for both sensors to
stabilize.
3. Wireless Sensor Installation
It is recommended you mount the remote sensor
in a shaded area. Direct sunlight and radiant
heat sources will result in inaccurate temperature
readings. Although the sensor is water resistant,
it is best to mount in a well-protected area, such
as under an eve.

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3.1 Mounting with Zip Tie
Mounting the sensor with a zip tie will result in
better accuracy when mounting outside, since it
is not touching another object. Other objects will
store and radiate heat (or cold).
Figure 4
3.2 Mounting with Nail or Screw
To mount the sensor with a nail or screw, the cap
must be less than or equal to 5.0 mm in
diameter.

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Figure 5
4. Console Operation
Note: The console has two buttons for easy
operation: 【CH/+ 】button (on the left), and
【MODE】button (on the right).
If no operation for 30s, display will return back to
normal mode.
4.1 Setting for 12/24hr Switch, Time
and °C/°F Switch
Long press【MODE】button 2s, step into setting
mode.
a. Short press【CH/+】switch 24/12hr display
b. Short press【MODE】,step into Hour setting,
Short press【CH/+】to adjust the number from

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1-12 or 0-23.
c. Short press【MODE】,step into Minute setting,
Short press【CH/+】to adjust the number from
0-59.
d. Short press【MODE】, step into temperature
unit setting, short press 【CH/+】to select°C/°F
display.
e. Short press 【MODE 】, to complete setting
mode and back to normal mode.
4.2 Setting for Alarm Clock
Short press【MODE】button, step into alarm clock
display setting mode, short press 【CH/+ 】to
enable ( speaker icon is lit) or disable alarm
function.
a. Long press【MODE】button 3s, step into alarm
Hour setting, Short press【CH/+】to adjust the
number from 1-12 or 0-23.
b. Short press【MODE】, step into alarm Minute
setting, Short press【CH/+】to adjust the number
from 0-59.
Note: When the alarm clock is ringing, you can
stop it by pressing any button.

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4.3 Setting for Min/Max Record
4.3.1 Min value mode
a. Short press【MODE】for twice, step into Min
value display mode.
b. Short press【CH/+】to select other available
outdoor sensor Min value (if no extra outdoor
sensor available, it will display “--.-“ instead).
c. Long press【CH/+】2s，reset the Min value of
indoor temperature/humidity and the current
displayed Min value of outdoor RF channel.
4.3.2 Max value mode
a. Short press【MODE】for three times step into
Max value display mode.
b. Short press【CH/+】to select other available
outdoor sensor channel Max value(if no extra
outdoor sensor available, it will display
“--.-“ instead).
Long press 【CH/+】for 2s,reset the Max value
of indoor temperature and the current
c. Long press【CH/+】2s，reset the Max value of
indoor temperature/humidity and the current
displayed Max value of outdoor RF channel.

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4.4 Setting for RF Channels
During normal display mode, press 【CH/+】to
select outdoor sensor display in the following
sequence:
CH1 – CH2 – CH3 –
5.Sensor Resynchronization
when the remote sensor lost reception or extra
sensors to be added, press both the 【CH/+】
and 【MODE】buttons at the same time for five
seconds.
While in the search mode, the reception search
icon flash.
6.Best Practices for Wireless
Communication
Note: To insure proper communication, mount
the remote sensor on a vertical surface, such as
a wall. Do not lay the sensor flat.
Keep the console several feet away from
computer monitors and TVs.

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7.Specifications
7.1 Wireless Specifications
Line of sight wireless transmission (in open
air): 300feet(100meters)
Frequency: 433 MHz
Update Rate: 60 seconds
7.2 Measurement Specifications
The following table provides specifications for
the measured parameters.
Measurement
Range
Accuracy
Resolution
Indoor
temperature
14 to
140 °F
± 1 °F
0.1 °F
Outdoor
Temperature
-40 to
140 °F
± 1 °F
0.1 °F
Indoor
Humidity
1 to
99 %
± 3% (20%
to 90%)
1%
7.3 Power Consumption
Base station (display console) : 1 x AA
Alkaline or Lithium batteries (not included)
Remote sensor : 1 x AA 1.5V Alkaline or

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Lithium batteries (not included)
8. FCC Statement
Statement according to FCC part 15.19:
This device complies with part 15 of the FCC
rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful
interference.
2. This device must accept any interference
received, including interference that may cause
undesired operation.
Statement according to FCC part 15.21:
Any changes or Modifications not expressly
approved by this company could void the user's
authority to operate the equipment.
Statement according to FCC part 15.105:
NOTE: This equipment has been tested and
found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide
reasonable protection against harmful

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interference in a residential installation. This
equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in
accordance with the instructions, may cause
harmful interference to radio communications.
However, there is no guarantee that interference
will not occur in a particular installation. If this
equipment does cause harmful 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:
•Reorient or relocate the receiving antenna.
•Increase the separation between the
equipment and receiver.
•Connect the equipment into an outlet on a
circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV
technician for help.
This device complies with FCC radiation
exposure limits set forth for an uncontrolled
environment and it also complies with Part 15 of
the FCC RF Rules. This equipment must be

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installed and operated in
accordance with provided instructions and the
antenna(s) used for this transmitter must be
installed to provide a separation distance of at
least 20 cm from all persons and must not be
co-located or operating in conjunction with any
other antenna or transmitter. End-users and
installers must be provided with antenna
installation instructions and consider removing
the no-collocation statement.
9.Warranty Information
We disclaim any responsibility for any
technical error or printing error, or their
consequences.
All trademarks and patents are recognized.
We provide a 1-year limited warranty on this
product against manufacturing defects in

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materials and workmanship.
This limited warranty begins on the original date
of purchase, is valid only on products purchased
and only to the original purchaser of this product.
To receive warranty service, the purchaser must
contact us for problem determination and service
procedures.
This warranty covers only actual defects within
the product itself, and does not cover the cost of
installation or removal from a fixed installation,
normal set-up or adjustments, claims based on
misrepresentation by the seller or performance
variations resulting from installation-related
circumstances.