Ambient Weather WS-2801A User manual

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 1
WS-2801A Advanced Color Wireless
Weather Station User Manual
Table of Contents
1 Introduction ..................................................................3
1.1 What’s New with the WS-2801A ..........................4
1.2 Features .................................................................4
2 Quick Start Guide .........................................................5
3 Getting Started ..............................................................5
3.1 Parts List ................................................................6
3.2 Recommend Tools .................................................7
3.3 Thermo-Hygrometer Sensor Set Up ......................7
3.4 Display Console ..................................................10
3.4.1 Display Console Layout ...............................10
3.4.2 Display Console Set Up................................12
3.4.3 Display Console Set Up................................13
3.5 Sensor Operation Verification .............................16
3.6 Sensor Placement ................................................17
3.7 Best Practices for Wireless Communication .......18
4 Console Operation ......................................................20
4.1 Set Mode .............................................................20

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 2
4.1.1 Time Zones ...................................................24
4.2 Barometric Pressure ............................................25
4.2.1 Barometric Pressure History .........................25
4.2.2 Relative Pressure Calibration .......................26
4.2.3 Relative vs. Absolute Pressure .....................26
4.3 Dew Point ............................................................27
4.4 Multiple Channel Selection and Scroll Mode ......27
4.5 Alarms .................................................................28
4.5.1 View Alarm Time .........................................28
4.5.2 Time Alarm Settings Mode ...........................28
4.5.3 Cancelling the Alarm ....................................29
4.5.4 Low Temperature Alarm ...............................30
4.6 Calibration ...........................................................30
4.7 Max/Min Mode....................................................33
4.8 Other Console Features .......................................34
4.8.1 Display Brightness........................................34
4.8.2 Weather Forecasting .....................................35
4.8.3 Weather Forecasting Description and
Limitations.............................................................36
4.8.4 Moon Phase ..................................................37
4.8.5 Pressure Tendency Arrows ...........................39
4.8.6 Rate of Change of Pressure Graph ...............39
4.8.7 Resynchronizing Lost Sensor .......................40

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 3
4.8.8 Factory Reset ................................................41
5 Glossary of Terms .......................................................42
6 Specifications .............................................................43
6.1 Wireless Specifications ........................................43
6.2 Measurement Specifications ................................44
6.3 Power Consumption ............................................45
7 Troubleshooting Guide ...............................................45
8 Accessories .................................................................48
9 Liability Disclaimer ....................................................49
10 FCC Statement .........................................................50
11 Warranty Information ...............................................51
1 Introduction
Thank you for your purchase of the Ambient Weather
WS-2801A Wireless Color Weather Station. The
following user guide provides step by step instructions
for installation, operation and troubleshooting. To
download the latest manual and additional
troubleshooting tips, please visit:
http://www.AmbientWeather.net/help

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 4
1.1 What’s New with the WS-2801A
The WS-2801 only supported one remote wireless sensor.
The WS-2801A supports up to three wireless remote
sensors.
The WS-2801A adds scroll mode, which allows you to
view all three channels without pressing any buttons.
1.2 Features
The WS-2801A features:
 Wireless outdoor and indoor humidity (%RH)
 Wireless outdoor and indoor temperature (°F
or °C)
 Records min. and max. humidity
 Records min. and max. temperature
 Barometric pressure (inHg or hPa)
 Weather forecast
 Radio controlled (WWVB) automatic date and
time or manual date and time
 12 or 24-hour time display
 Perpetual calendar
 Time alarm with snooze
 Moon phase
 LED color backlight
 Wall hanging or free standing
 Supports up to three wireless remote sensors

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 5
2 Quick Start Guide
Step Description Section
1
Power up Remote Sensor
3.3
2
Power Up Display Console
3.4
3
Set Up or Program Display Console
4.1
4
Install Sensor
3.6
5 Calibrate Barometer 4.2 and
4.6
3 Getting Started
The WS-2801A weather station consists of a display
console (receiver), thermos-hygrometer sensor and AC
adapter.
Note: The power up sequence must be performed
in the order shown in this section (remote transmitter
first, display console second) to properly synchronize the
remote sensor to the console.

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 6
3.1 Parts List
QTY Item Image
1 Display Console
(WS-2801A-C)
Frame Dimensions
(LxHxW): 6.36 x 3.39 x
0.86”
(161.5 x 86 x 21.5 mm)
1 Thermo-hygrometer
transmitter (WH32M)
Dimensions (LxHxW):
4.80 x 1.57 x 0.71”
(122 x 40 x 18 mm)
1 Manual
1 Power Adapter
Figure 1

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 7
3.2 Recommend Tools
 Hammer and nail for hanging remote
thermo-hygrometer transmitter.
3.3 Thermo-Hygrometer Sensor Set Up
Remove the battery door on the back of the sensor, as
shown in Figure 2.
Figure 2

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 8
1. BEFORE inserting the batteries, switch the
channel switch to the appropriate channel. If
you have one sensor, set the switch to Channel 1.
If you have two sensors, set the second sensor to
Channel 2. If you own three sensors, set the
third sensor to Channel 3.
2. To change the temperature units of measure,
press the ºC/ºF button.
3. Insert two AA batteries.
4. After inserting the batteries, the remote sensor
will display temperature and humidity and
channel number on the display, as shown in
Figure 3.
1 Temperature
2 Temperature Units of
Measure
3 Channel Number
4 Humidity
Figure 3
5. Close the battery door.

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 9
Note: We recommend lithium batteries for cold
weather climates, but alkaline batteries are sufficient
for most climates. We do not recommend
rechargeable batteries. They have lower voltages, do
not operate well at wide temperature ranges, and do
not last as long, resulting in poorer reception.
Note: If the incorrect channel number is selected,
change the channel number switch on the back of
the sensor, and remove and reinsert the batteries for
the change to take effect.

Version 2.7.1 ©Copyright 2019, Ambient LLC. All Rights Reserved.
Page 10
3.4 Display Console
3.4.1 Display Console Layout
The display console layout is shown in Figure 4.
Figure 4