ECOWITT WN190 User manual

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WiFi Weather Station
Operation Manual
Table of Contents
1. Introduction.................................................................................. 3
2. Warnings and Cautions.................................................................3
3. Quick Start Guide.........................................................................3
4. Pre-Installation Checkout and Site Survey...................................4
4.1 Pre Installation Checkout..........................................................4
4.2 Site Survey................................................................................4
5. Setting Started.............................................................................. 5
5.1 Contents.................................................................................... 5
5.2 Sensor Array Set Up................................................................. 5
5.2.1 Install U-bolts and mounting pole......................................6
5.2.2 Install wind vane................................................................ 7
5.2.3 Install wind speed...............................................................7
5.2.4 Install Rain Gauge..............................................................8
5.2.5 Install Batteries...................................................................8
5.2.6 Mount assembled outdoor sensor package.........................9
5.2.6.1 Before you mount...........................................9
5.2.6.2 Mounting......................................................10
5.2.7 Reset Button and Transmitter LED..................................10
5.3 Optional sensors......................................................................11
5.4 Indoor/Outdoor Thermo-Hygrometer, 8 Channel (optional)..13
5.5 Best Practices for Wireless Communication.......................... 15
5.6 Display console...................................................................... 16
6. Display Console Operation........................................................ 18
6.1 Screen Display........................................................................18
6.2 Initial Display Console Set Up............................................... 18
6.2.1 Key function.....................................................................19
6.3 Setting mode...........................................................................20
6.4 Barometric Pressure Display.................................................. 23
6.4.1 Viewing Absolute vs. Relative Pressure...........................23
6.4.2 Rate of Change of Pressure Graph...................................23
6.4.3 Relative Pressure Calibration Discussion........................ 24
6.5 Rain Display........................................................................... 24
6.5.1 Rain Increments of Measure............................................ 24
6.5.2 Increments of Rain Definitions........................................ 25
6.6 Wind Display.......................................................................... 25
6.7 Temperature Display...............................................................25

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6.7.1 Wind Chill, Dew Point and Heat Index Display.............. 26
6.8 Alarms.....................................................................................26
6.8.1 Viewing High and Low Alarms........................................26
6.8.2 Setting High and Low Alarms..........................................27
6.9 Max/Min Mode.......................................................................31
6.9.1 Viewing Max/Min Values................................................ 31
6.9.1.1 Display Wind Chill, Heat Index vs. Dew Point
Max/Min Values.......................................................31
6.9.1.2 Display Wind Speed vs. Wind Gust Max
Values....................................................................... 32
6.9.1.3 Display Hourly Rain, Rain Rate.................. 32
6.9.1.4 Display Absolute and Relative Pressure Min
and Max Values........................................................32
6.10 Resynchronize Wireless Sensor............................................32
6.11 Backlight Operation..............................................................33
6.11.1 With USB cable (included)............................................ 33
6.11.2 Without USB cable.........................................................33
6.12 Tendency Arrows..................................................................33
6.13 Wireless Signal Quality Indicator.........................................33
6.14 Weather Forecasting............................................................. 34
6.14.1 Storm Alert.....................................................................34
6.14.2 Weather Forecasting Description and Limitations......... 34
7 Specification:.............................................................................. 35
8 Live Internet Publishing..............................................................37
8.1 Configure WiFi via BLE to connect the Weather Station
Console......................................................................................... 37
8.1.1 Download mobile application.......................................... 40
8.1.2 Configure WiFi via BLE.................................................. 40
8.1.2.1 Apple iOs user..............................................40
8.1.2.2 Android user:................................................44
8.2 Ecowitt Weather.................................................................. 47
8.3.Registering WeatherUnderground.com through the PC or Mac50
9. Other functions on WS View..................................................... 58
9.1 WU Dashboard vs Live Data..................................................58
9.2 Manage Wunderground.......................................................... 58
9.3 Settings................................................................................... 59
9.4 Manage Ecowitt......................................................................59
9.5 Direct Connection & Test Mode............................................ 61
9.6 Calibration.............................................................................. 62
9.7 Editing Rain totals.................................................................. 63
9.8 Device Settings.......................................................................63
9.9 Sensor ID................................................................................ 63
10. Maintenance............................................................................. 63
11. Troubleshooting Guide.............................................................65

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1. Introduction
Thank you for your purchase of the Wireless WiFi Weather Station. The
following user guide provides step by step instructions for installation,
operation and troubleshooting.
2. Warnings and Cautions
Warning: Any metal object may attract a lightning strike, including
your weather station mounting pole. Never install the weather station in a
storm.
Warning: Installing your weather station in a high location may
result in injury or death. Perform as much of the initial check and operation
on the ground and inside a building or home. Only install the weather
station on a clear, dry day.
3. Quick Start Guide
Although the manual is comprehensive, much of the information contained
may be intuitive. In addition, the manual does not flow properly because the
sections are organized by components.
The following Quick Start Guide provides only the necessary steps to install,
operate the weather station, and upload to the internet, along with references
to the pertinent sections.
Table 1: Quick Start Guide
Required
Step
Description
Section
1
Assemble and power up the integrated sensor
array
5.2.1–5.2.3
2
Power up the display console and synchronize
with sensor array
5.6
3
Set date and time on console
6.4.5
4
Calibrate the relative pressure to sea-level
conditions (local airport) on console
6.4.3
5
Mount the sensor array
5.2.6
6
Reset the rain to zero on console
6.4.8
Optional
7
Configure WiFi via BLE
8.1
8
Register and upload to Weather Server
9

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4. Pre-Installation Checkout and Site Survey
4.1 Pre Installation Checkout
Before installing your weather station in the permanent location, we
recommend operating the weather station for one week in a temporary
location with easy access. This will allow you to check out all of the
functions, insure proper operation, and familiarize you with the weather
station and calibration procedures. This will also allow you to test the
wireless range of the weather station.
4.2 Site Survey
Perform a site survey before installing the weather station. Consider the
following:
1. You must clean the rain gauge every few months and change the
batteries every 2-3 years. Provide easy access to the weather
station.
2. Avoid radiant heat transfer from buildings and structures. In
general, install the sensor array at least 5’ from any building,
structure, ground, or roof top.
3. Avoid wind and rain obstructions. The rule of thumb is to install
the sensor array at least four times the distance of the height of the
tallest obstruction. For example, if the building is 20’ tall, and the
mounting pole is 6’ tall, install 4 x (20 – 6)’ = 56’ away.
4. Wireless Range. The radio communication between receiver and
transmitter in an open field can reach a distance of up to 100
meters, providing there are no interfering obstacles such as
buildings, trees, vehicles, high voltage lines. Wireless signals
will not penetrate metal buildings. Under most conditions, the
maximum wireless range is 100’.
5. Radio interference such as PCs, radios or TV sets can, in the worst
case, entirely cut off radio communication. Please take this into
consideration when choosing console or mounting locations. Make
sure your display console is at least five feet away from any
electronic device to avoid interference.

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5. Setting Started
5.1 Contents
QT
Y
Item Description
1
Display Console
1
Outdoor Sensor with built-in: Thermo-hygrometer / Rain Gauge /
Wind Speed Sensor/ Wind Direction Sensor
1
Wind speed cups (to be attached to outdoor sensor body)
1
Wind vane (to be attached to outdoor sensor body)
2
U-Bolts for mounting on a pole
4
Threaded nuts for U-Bolts (M6 size)
1
Metal mounting plate to be used with U-Bolts
1
Wrench for M6 bolts
1
USB to 2.5*0.7mm DC 5V power plug connector cable
1
User manual (this manual)
Table 2: Package content
If components are missing from the package, or broken, or any problem
during the operation, please contact customer service to resolve the issue.
5.2 Sensor Array Set Up

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Figure 1: Sensor assembly components
1 Wind speed cups
6 Antenna
2 Wind vane
7 U-Bolts
3 Thermo- and hygro-meter sensors
8 Battery compartment door
4 Rain collector
9 Reset button
5 Bubble level
10 LED (red) to indicate data
transmission
Table 3: Sensor assembly detailed items
5.2.1 Install U-bolts and mounting pole
Installation of the U-bolts, which are in turn used to mount the sensor
package on a pole, requires installation of an included metal plate to
receive the U-bolt ends. The metal plate, visible in Figure 2, has four holes
through which the ends of the two U-Bolts will fit. The plate itself is
inserted in a groove on the bottom of the unit. Note that one side of the
plate has a straight edge (which goes into the groove), the other side is bent
at a 90-degree angle and has a curved profile (which will end up “hugging”
the mounting pole). Once the metal plate is inserted, remove nuts from the
U-Bolts and insert both U-bolts through the respective holes of the metal
plate as shown in Figure 2.
Figure 2: U-Bolt installation

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Loosely screw on the nuts on the ends of the U-bolts. You will tighten these
later during final mounting. Final assembly is shown in Figure 3.
Figure 3: U-Bolts and nuts installed
The plate and U-Bolts are not yet needed at this stage but doing this now may
help avoid damaging wind vane and wind speed cups later on.
5.2.2 Install wind vane
Push the wind vane onto the shaft on the bottom of the sensor, until it stop
moving further, as shown in figure 4.
Tighten the set screw, with a Philips screw driver (size PH0), until the
wind van cannot be removed from the axle, as shown in figure 4. Make
sure the wind vane spin freely. The wind vane’s movement has a small
amount of friction, which is helpful in providing steady wind direction
measurements.
Figure 4: Wind vane installation diagram
5.2.3 Install wind speed
Push the wind speed into the shaft as shown in figure 5.
Tighten the set screw with screw driver. Make sure the wind speed can spin

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freely.
Figure 5: Wind speed cup installation diagram
5.2.4 Install Rain Gauge
Install the rain gauge funnel. Rotate clockwise to attach the funnel to the
outdoor sensor.
Figure 6: Rain gauge installation and maintenance
5.2.5 Install Batteries
Insert 2xAA batteries in the battery compartment. The LED indicator on
the back of the transmitter will turn on for four seconds and normally flash
once every 16 seconds (the sensor transmission update period).

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Figure 7: Battery installation diagram
Note: If no LED light up or is permanently on, make sure the batteries
are inserted the correct way or a proper reset has happened. Do not install
the batteries backwards. You can permanently damage the outdoor sensor
Note: We recommend 1.5V lithium batteries for cold weather climates,
but alkaline batteries are enough for most climates. We do not recommend
rechargeable batteries. They have lower voltages, they do not operate well
at wide temperature ranges, and do not last as long, resulting in poorer
reception.
5.2.6 Mount assembled outdoor sensor package
5.2.6.1 Before you mount
Before proceeding with the outdoor mounting detailed in this section, you
may want to skip to setup instructions in section 6.2 and onwards first,
while you keep the assembled outdoor sensor package nearby (although
preferably not closer than 5 ft. from the console). This will make any
troubleshooting and adjustments easier and avoids any instance or
interference related issues from the setup.
After setup is complete and everything is working, return here for outdoor

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mounting. If issues show up after outdoor mounting they are almost
certainly related to distance, obstacles etc.
5.2.6.2 Mounting
You can attach a pipe to a permanent structure and then attach the sensor
package to it (see Figure 8). The U-Bolts will accommodate a pipe
diameter of 1-2 inches (pipe not included).
Figure 8: Sensor package mounting diagram
Finally, place the sensor package on top of the prepared mounting pipe.The
U-Bolts should be loose enough to allow this but loosen the nuts as neces
sary. Once placed, hand tightens all four nuts, taking care to do so evenly.
Now you will need to align the whole package in the proper direction by
rotating it on top of the mounting pipe as needed. Locate the arrow
labeled “WEST” that you will find on top of the sensor package right next
to the light sensor. You must rotate the whole sensor package until this arro
w points due West. To achieve proper alignment, it is helpful to usea comp
ass (many cell phones have a compass application).
Once rotated in the correct orientation, lightly tighten the bolts a little mo
re (use a wrench) to prevent further rotation.
Note: Use the bubble level next to the rain sensor to make sure sensor
array is completely level. If the sensor is not level then the rain gauge will
measure inaccurately.
5.2.7 Reset Button and Transmitter LED
In the event that the sensor array is not transmitting, reset the sensor array.

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With an open ended paperclip, press and hold the RESET BUTTON for
three seconds and resynchronize with console by powering down and up
the console. Please put the console with the sensor array about 3 meters
away.
Figure 9: Reset button and Transmitter LED location
5.3 Optional sensors
The following optional sensors (purchased separately) can be used with
console display.
If you have purchase extra sensors, just simple power up, the display
console will receives the data automatically and sends the data directly to
Ecowitt.net ( requires to set the console uploading to ecowitt.net first). The
data is not displayed on the console (pass through only) and sensor
management and calibration can only be realized via WS VIEW APP.
Item
Number
Number
of
Channels
Description
Image
WH41
4*
PM2.5 Wireless Outdoor
Particulate Monitor
WH43
4*
PM2.5 Wireless Indoor
Particulate Monitor

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WH45
1
PM2.5, PM10 and CO2Wireless
Indoor Particulate Monitor
WN51
8*
Soil Moisture Sensor
WH51
8*
Soil Moisture Sensor
WH57
1
Lightning Detector
WH55
4
Leak Detector
WS80
1
Ultrasonic Anemometers with
Temp & Humidity sensor
WH68
1
4-in-1 sensor
Indoor temperature, indoor
humidity, wind direction and
wind speed

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WH40
1
Rain sensor
WN34
8*
WN34S stainless-steel probe ther
mometer for soil and water
WN34L wire probe thermomete
r for water
WN35
8
Leaf wetness sensor
(*) The WH41 and WH43 share the same 4-channels.
The WN51 and WH51 share the same 8-channels.
The WN34S and WN34L share the same 8-channels.
The WS68 could not be used with the WS80 at the same time.
Table 4: Optional sensors list
5.4 Indoor/Outdoor Thermo-Hygrometer, 8 Channel (optional)
This item supports up to 8 additional thermo-hygrometer sensors (WH31),
the data display on the console and sends the data to Ecowitt.net
(requires to set the console uploading to ecowitt.net first ).
Note: Do not use rechargeable batteries. We recommend fresh alkaline
batteries for outdoor temperature ranges between -4 °F and 140 °F and
fresh lithium batteries for outdoor temperature ranges between -40 °C and
60 °C.
1. Remove the battery door on the back of the transmitter(s) by sliding
down the battery door, as shown in Figure 13.

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Figure 10: Battery installation for Multi-channel sensor
2. BEFORE inserting the batteries, locate the dip switches on the inside
cover of the lid of the transmitter.
3. Channel Number: This item supports up to eight transmitters. To set
each channel number (the default is Channel 1), change Dip Switches
1, 2 and 3, as referenced in Figure 11.
4. Temperature Units of Measure: To change the transmitter display
units of measure (°F vs. °C), change Dip Switch 4, as referenced in
Figure 11.
Switch in down position. Switch in up position.
Figure 11: Dip Switch diagram

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5. Insert two AA batteries.
6. Verify the correct channel number (CH) and temperature units of
measure (°F / °C) are on the display, as shown in Figure 12.
Figure 12: sensor LCD display
1. Temperature units (°C/°F )
3. Channel number
2.Temperature
4. Relative humidity
7. Close the battery door.
8. Repeat for the additional remote transmitters, verifying each
remote is on a different channel.
5.5 Best Practices for Wireless Communication
Note: To insure proper communication, mount the remote sensor(s)
upright on a vertical surface, such as a wall. Do not lay the sensor flat.
Wireless communication is susceptible to interference, distance, walls and
metal barriers. We recommend the following best practices for trouble free
wireless communication.
Electro-Magnetic Interference (EMI). Keep the console several feet
away from computer monitors and TVs.
Radio Frequency Interference (RFI). If you have other devices operating
on the same frequency band as your indoor and/or outdoor sensors and
experience intermitted communication between sensor and console, try
turning off these other devices for troubleshooting purposes. You may
need to relocate the transmitters or receivers to avoid intermittent
communication.
1. Line of Sight Rating. This device is rated at 300 feet line of sight
(no interference, barriers or walls) but typically you will get 100
feet maximum under most real-world installations, which include
passing through barriers or walls.
2. Metal Barriers. Radio frequency will not pass through metal
barriers such as aluminum siding. If you have metal siding, align
the remote and console through a window to get a clear line of
sight.

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The following is a table of reception loss vs. the transmission medium.
Each “wall” or obstruction decreases the transmission range by the
factor shown below.
Medium
RF Signal Strength Reduction
Glass (untreated)
5-15%
Plastics
10-15%
Wood
10-40%
Brick
10-40%
Concrete
40-80%
Metal
90-100%
Table 5: RF Signal Strength reduction
5.6 Display console
The front and back of the display console is shown in Figure13.
Figure 13: Display console front and back
Reference Figure 14.
(1) Unfold the desk stand and place 5 to 10 feet away from the outdoor
sensor.
Remove the battery door on the back of the console and insert 2 x AA good
quality Alkaline or Lithium batteries per Figure 14.
(2) Wait several minutes for the remote sensors to synchronize with the
display console.
(3) In order to prevent the display console's own temperature rise from
affecting the accurate reading of temperature and humidity, the
temperature and humidity sensor is placed at the antenna end away from

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the station body. Orient the console antenna straight up for accurate indoor
temperature and humidity reading.
Figure 14: Battery installation for display console
If the console display receives additional sensors (purchased separately)
besides standard outdoor sensor, it must be connected a USB power supply
(included).
If only standard outdoor sensor is received, it can be powered only by
batteries. The battery life can exceed six months

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6. Display Console Operation
6.1 Screen Display
Figure 15: Display Console Screen Layout
1.Wind direction
9. Rainfall
2.Wind speed
10. Barometric Pressure graphic
3. RF icon
11. Weather forecast
4. 8 Channel Indoor/Outdoor
Thermo-Hygrometer recycle icon
(optional)
12. Date
5. Outdoor temperature
13. WIFI icon
6. Outdoor humidity
14. Time
7. Indoor humidity
15. Daylight Savings Time (DST)
8. Indoor temperature
Table 6: Display console detailed items
6.2 Initial Display Console Set Up
Insert the batteries to power up the display console.

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The unit will show software version number 2 seconds after power reset.
The unit will turn on all segments of the LCD for 3 seconds after power
reset, the unit will start to register the outdoor channel for 3 minutes.
Figure 16
6.2.1 Key function
The console has five keys for easy operation
Figure 17
Key
Description
MODE
Press and hold for two seconds to enter the Set Mode.
Press to switch between Normal Mode, Max Mode, Min
Mode, High Alarm Mode, Low Alarm Mode, MAC
address display Mode

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TEMP+
Press to switch between Outdoor Temperature, Wind
Chill, Dew Point, Heat Index, 8 channel optional
Indoor/Outdoor Thermo-hygrometer, Circle Mode
WIND -
Press to switch between average wind speed and, wind
gust.
Press and hold for two seconds to switch the wind
direction to display in degrees or in letters.
RAIN/PRE
Press and hold for two seconds switch between Rain
and Pressure.
While in Rain mode, press to switch between Rain Rate,
Rain Events, Hourly Rain, Daily Rain, Weekly Rain,
and Monthly Rain
While in Pressure mode, press to switch between
Relative pressure and Absolute pressure
LIGHT
Press to adjust the LCD backlight brightness (high,
medium and off).
Press to exit the SET mode at any time.
TEMP+
(and)
RAIN PRE
Press this two buttons at the same time for 4 seconds to
activate BLE function for WiFi configuration (refer to
section 8.1.2)
Table 7: Key function
6.3 Setting mode
Note: DST, Time Zone setting can only be programmed via WS View APP.
You will need to set time zone info properly if you have the console
connected to internet and these setting need to be adjusted for your setup,
otherwise console will be synchronized to default setting if you don’t setup
these parameters on the APP properly.
Press and hold the MODE button for two seconds to enter the Set Mode.
To proceed to the next setting, press (do not hold) the MODE button.
To exit the SET mode at any time, press the LIGHT button.
Table 8 summarizes the set mode sequence and commands.