ASSISTANT AH-1975 User Manual
Operation manual
[MEMORY]
Read max/min
temperatures &
humidity
Clear memory
record
[HEAT INDEX/
DEW POINT]
Read Heat Index & Dew
Point
[PRESSURE]
Toggle pressure unit
hPa, inHg & mb
Altitude setting
[SNOOZE/
LIGHT]
Trigger snooze alarm &
extend backlight
[ZONE]
Toggle Home time &
Zone time
Zone time setting
[C/F]
Toggle degree C & F
Slide Switch
[BACKLIGHT
(AUTO/ HIGH /
LOW / OFF)]
Display brightness
setting (AUTO mode
is recommended to
adjust the brightness
automatically)
BATTERY & ADAPTER INSTALLATION
Home Receiver Unit:
Main Power Source: Plug in the 6.0V adapter into the
adapter socket at the back for basic operation and con-
tinuous backlight.
Backup Power: Lift off the battery cover, install 3 piec-
es of AAA backup batteries according to the polarity in-
dicated, close the battery cover.
Remote Sensor:
Loosen the screws on the battery door with a small
screwdriver, insert 2 pieces of AAA batteries according
to the polarity indicated. Replace the cover and tighten
the screws.
ALTITUDE SETTING
After inserting batteries or adapter, the main unit
will enter altitude setting mode directly. Press [] or
[] to select pressure unit in hPa, mb or in Hg. Press
[PRESSURE] to confirm. Then press [] or [] to enter
your current altitude in meter or feet. Press [PRESSURE]
to confirm and exit the setting. This allows the unit to
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MINI WEATHER STATION
Model AH-1975
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provide a more accurate barometric pressure & weather
forecast reading. (For more information, see “WEATHER
FORECAST & BAROMETRIC PRESSURE” section)
SETTING UP THE WIRELESS THERMO-HYGROMETER
1. For the first installation, always turn on the home
unit and then the remote sensor. Set Channel 1 for the
first remote sensor. Set channel 2 and channel 3 for the
2
nd
and 3
rd
sensor.
2. Press and hold [CHANNEL/SEARCH] button on
main unit until a beep is sound to search for remote sen-
sor.
3. Press the [Tx] button on the back of remote sensor
to transmit RF signal.
4. When RF connection is established, the respective
temperature & humidity of the selected channel will ap-
pear on the main unit.
WEATHER FORECAST & BAROMETRIC PRESSURE
The unit predicts weather condition of the next 12 –
24 hours based on the change of atmospheric pressure.
The coverage area is around 30 – 50km. The weather
forecast is based on atmospheric pressure change and is
about 70-75% correct. As weather conditions cannot be
100% correctly forecasted, we cannot be responsible for
any loss caused by an incorrect forecast.
Sunny
Slightly cloudy
Cloudy
Rainy
Stormy
The current weather forecast is the one highlighted
by a black-outlined square box.
To obtain an accurate weather forecast & baromet-
ric pressure reading, you need to input your current al-
titude. After the reset of the unit, it will enter altitude
setting mode. Press [] or [] to set the pressure
unit in hPa, mb or in Hg. Press [PRESSURE] to confirm.
Then enter your current altitude in meter or feet. Press
[PRESSURE] to confirm and exit the setting. You can also
hold [PRESSURE] button to enter altitude setting mode
during normal use.
Press [PRESSURE] button to select pressure unit be-
tween hPa, in Hg & mb.
IMPORTANT NOTE:
Different geographical location such as inland area
or coastal region has different weather forecasting re-
sponse. In case your weather forecast always show rainy
or stormy over a long period of time and does not re-
flect the actual weather condition, it is necessary to fol-
low below procedure for fine tuning the weather fore-
cast’s accuracy.
1. Check the current weather condition outdoor.
2. Enter altitude setting mode and adjust altitude ac-
cordingly. Increase or decrease altitude setting by 20m
(or 60ft) each time and exit. Repeat this step until the
weather forecast icon matches with the current outdoor
weather condition.
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Thank you for purchasing the new generation col-
or weather station. Designed and engineered with the
state-of-art technology and components, this instru-
ment will provide accurate and reliable measurement
of barometric pressure, weather forecast, in/out humid-
ity, temperature, heat index, dew point as well as alarm
clock. Read this manual carefully to fully explore the fea-
tures and functions of the new product.
NAME AND FUNCTIONS OF BUTTONS:
Press Functions
Hold 3 seconds
[CLOCK]
Read time, calendar
and day-of-week
Set Clock &
Calendar
[ALARM]
Read alarm time;
enable/disable alarm
Alarm time
setting
[ Up]
1 step forward in
setting
Fast advance
[ Down]
1 step backward in
setting
Fast backward
[CHANNEL/
SEARCH]
Select indoor, Channel
1,2,3, auto scroll
Search for remote
sensor
OPERATION MANUAL
(E.g. If the current outdoor weather is partly cloudy,
increase or decrease altitude setting until weather fore-
cast icon becomes partly cloudy)
Increase altitude
Decrease altitude
Increase altitude
Decrease altitude