Mandolyn Electronic Technology WS290C Weather Station Receiver User Manual ws290C
Mandolyn Electronic Technology Inc. Weather Station Receiver ws290C
Users Manual

GETTING STARTED button placement
1
7
6
8
9
10
2
3
4
5
MIN/Day/MIN/- :  shows minimum 
temperature; adjusts clock, alarm, date 
and temperature alarm values
MODE/SNOOZE:  scrolls through Clock 1 & 2, 
Alarm 1&2, Date and Temperature Alarm mode; 
snooze for alarm
SET:  change House Code, Channel value and select C/F
Table Stand
RESET: Reset Channel & House Code
Battery Compartment
LCD display
ON/OFF (C/F) toggles between  C and  F, 12 and 
24 hour format; Alarm 1&2 on and off, and bar 
graph indoor and outdoor channels; scrolls 
through temperature alarm settings (off/high/low)
CHN/ WEEKDAY:  scrolls through local and remote 
channels (1 to 3); adjusts time and date values
HOUR/MONTH/MAX/+:  shows maximum 
temperature; adjusts clock, alarm, date 
and temperature alarm values
SETRESET
8
7
1
2
3
5
4
6
9
9
WS290C + WT260H
Wireless Weather Station
OWNERS 
MANUAL
Congratulations on your purchase of this 
weather station set, WS290C + WT260H.  
Please take the time to read and 
understand this manual so you can begin 
to enjoy the convenience and features this 
product has to offer.
FEATURES
Main Display Unit WS290C:
* dual clock and dual alarm
* calendar (month/day/date)
* local temperature display
* receives and displays temperature and 
humidity readings from up to 3 remote 
transmitter via RF technology of 433MHz
* minimum and maximum temperature and 
humidity display
* temperature and humidity trend indicator
* temperature history (bar graph for past 12 
hours)
* weather report symbols
* user-selectable C or F
* table stand or wall mountable
* battery type: 2 x AA
Remote Transmitter WT260H
* drip-proof design with LCD
* temperature display in user-selectable C 
or F
* humidity display
* transmission range: up to 40 meters in 
open area
* table stand or wall mountable
* battery type: 2 x AAA
WS290C receiver
WT260H remote transmitter
battery installation
GETTING STARTED Synchronization
Synchronised!!!
1
1
3
2
4
5
6
remove battery cover
2 AA size batteries (WS290C)
2 AAA size batteries (RT201H) 
(included)
Insert between terminals observing 
proper polarity then replace cover
LOW BATTERY INDICATION:  Low battery indicator on receiver will flash continuously 
when batteries need to be changed.  On transmitter, Lo bat will be displayed
SETUP
Automatic Learn Function:
Manual-Learn (Search Remote Signals):
Learn function executes automatically and runs for approximately 3 
minutes when batteries are first installed in the receiver. 
Pressing and holding CHN for 
3 seconds to start 
If a new remote sensor is added or if signal is lost (outdoor display 
blinking), learn function must be executed again.
Within these 3 minutes, receiver picks up the temperature & 
humidity signals from remote sensor and display the reading.
Beep sound indicates that 
learn function has started
'Channel' symbol will flash and 
unit will beep as each remote 
sensor is detected
SETRESET
setting up transmitters
SETRESET
2
3 5
4
1
1
Press RESET to start setup
House code will flash for 10 seconds
2
2
* Use a different house code if your weather station receives the other transmitter of
   your neighbourhood.
* If House code and Channel code are not selected (steps 3 & 5 are skipped), House 
   code 01 and Channel code 1 are default.
Check Remote Temperature & Humidity
Check Local Temperature
C or F Temperature Display
Min and Max Temperature & Humidity
Historical Temperature Bar Graph
WEATHER DISPLAY
B
C
D
*
A
3
4
3
3
4
4
5
Select House code (1-15) by pressing SET
Channel will flash for 10 seconds
Press CHN key to display and toggle the 
readings of temperature and humidity among 
the Channel 1, 2 and 3 displays. Temperature 
and humidity data will alternate 
Local Temperature displays instantly 
after batteries are inserted.
Toggle between  C and  F by pressing 
ON/OFF in either CLOCK1 or CLOCK2 mode.
Press MIN in Clock1 mode to display 
minimum temperature and humidity
The bar graph lets you see the temperature 
trend over a period of 12 hours in 3-hour intervals.
Toggle between indoor and outdoor bar graphs 
using ON/OFF in Date mode.
Press MAX in Clock1 mode to display
maximum temperature and humidity
Select Channel(1-3) by pressing SET
Note:
Min/Max readings are 
automatically cleared 
daily at 00:00
Transmitters for each receiver must be set to the 
same House code.
28.6 C
2
5
6
10
1
*
A
B
C
D
E
E
Temperature & humidity readings of remote 
transmitter displays on the receiver.
Clock 1 Setting:
Press and hold MODE for 3 seconds to enter the clock setting mode 
(the CLOCK 1 symbol appears and the time will flash)
Press HOUR to set the hour and MIN to set the minute; 
Press ON/OFF during clock setting, to change between 12 and 24 hour 
display.  This also will end the clock setting. 
Press MODE or no key pressed for 1 minute will finish the clock setting.
Clock 2 Setting:
Scroll to CLOCK 2 mode using MODE 
Press + or - key to change the hour 
(in one hour increments/decrements
relative to Clock 1)
Alarm 1and Alarm 2 Setting
Scroll to ALARM1 mode (ALARM2 mode)
using MODE/SNOOZE
Press  HOUR/+/MAX to set hour
Press MIN/-/MIN to set minute
Press ON/OFF to toggle alarm on and off
When the alarm is set ON, the 'on' symbol will appear
When Alarm Sounds
ALARM 1 or ALARM 2 will flash
The Crescendo alarm will initially have a gentle sound.  
The loudness will increase gradually.
Press SNOOZE key will snooze the alarm for 5 minutes. 
After that the alarm will sound again. 
Press ANY other key will shut off the alarm.
Without interruption, alarm will turn off
automatically after one minute.
Calendar Setting:
Scroll to Date mode using MODE/SNOOZE  
Press HOUR/+/MAX to set month
Press MIN/-/MIN to set date 
Press CHN to set day
CLOCK SETTING DATE & ALARM SETTING
1
Clock 1 Setting
1
2
3
4
Clock 2 Setting
Calendar Setting
1
1
6
2
3
4
514
5
2 6
3
2
3
4
1
23
4
1
2
3
4
5
5
2
3
4
1
2
3
4
5
The trend indicator shows the trend of temperature and humidity
determined by the particular transmitter in the past half-hour interval.
The receiver is able to monitor and display the weather status based on 
collected data from Channel 1.
About Freeze Warning
* Snow symbol will flash to warn of 'freezing'.
* Activated when Channel 1's temperature is between -1.9 C and +2.9 C
* Snow will appear solid if and when Channel 1's temperature falls below -1.9 C.
Note:
* Initially, the weather will be cloudy
* Remote transmitter Channel 1 will be used for weather indication. 
* If Channel 1 is empty, then weather will always be cloudy. 
* If Channel 1 has no humidity data, weather indication will always be 
   cloudy, but freeze warning and snow indication will be available.
weather report symbols
WEATHER DISPLAY
Arrow Indicator
Rising Steady Falling
Trend
Freeze 
Warning
Weather  
Indicator
<flashing snow>
OR
temperature & humidity trend
Raining Snowing
Sunny Cloudy
Scroll to Temperature Alarm mode using MODE
You can set temperature alarm for local main 
unit and for one outdoor channel seperately.
Press + or - key to set the value of temperature limit
Use ON/OFF key to select temperature alarm mode:
- Up arrow: Upper temperature limit
- Down arrow: Lower temperature limit
- Without arrow: Temperature alarm disabled
Use CHN key to select desired remote channel (1, 2 
or 3) for temperature alarm. Only one channel can be 
selected. Repeat the step 3 & 4 for setting remote 
channel temperature alarm.
Indoor temperature will flash
1
a
*
b
c
TEMPERATURE ALARM Setting
When Temperature Alarm Sounds
Press any key to stop temperature alarm; or
If no key is pressed, the temperature alarm will automatically stop 
itself after one minute.
Once triggered, temperature alarm comes on as a distinctive 
sound, different to that of ALARM1 and ALARM2.  
Also, the 'siren' symbol will flash.
It is to alert the real temperature exceeds the preset temperature limit.
ii
ii ii
iii iii
Re-synchronize receiver by holding CHN for 3 
seconds until a beep is heard.
Ensure the remote transmitter is out of direct 
sunlight, and away from sources of heat.
- Repeat the learning procedures.
- Temperature may be below -30
transmitter
transmitter
transmitter
C.
- Batteries in remote   may need changing.  
- Move remote   closer to the receiver.
- Make sure remote   is away from sources    
  of electrical disturbance.
The temperature measurement of 
remote transmitter and receiver does
not match
Temperature reading of the outdoor 
remote transmitter seems too high.
Receiver is no longer receiving 
remote transmitter signals or display 
problem solution
TROUBLESHOOTING
SPECIFICATIONS
Weather Station Receiver WS290C
- Battery Type: 2 X 1.5V AA batteries
- Operation Temp: 
- Temp. Range: 
- 
-5 C to +50 C
-20 C to +55 C
- Measurement Accuracy: Max. +/- 1 C 
within measuring range of 0 to 40 C
Resolution: 0.1C
Weather Station Transmitter WT260H
- Battery Type: 2 X 1.5V AAA batteries
- 
Temp. Range: -30
Operation Temp.: -20 C to +60 C
-  C to +70C
- Temperature Resolution: 0.1 C for above -10 C / 
  1 C for below -10 C
- Measurement Accuracy: Max. +/- 1 C within 
  measuring range of 0 to 40 C
- Humidity Range: 25% to 90% RH (resolution 0.5%)
- Transmission Frequency: 433.92 MHz
- Transmission Range: up to 40 meters in open area
d
2
3
4
5
*
1
4
3
5
42
d
NOTICE
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 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.
Warning:
Changes or modifications made to this equipment not expressly approved by 
the manufacturer may void the FCC authorization to operate this equipment.