Electronics Tomorrow 809090803 User Manual
Feature
Calendar with day of the week display from January 1, 2003 to December 31, 2069
Hour and minute display
12 or 24-hour format
Indoor temperature and remote temperature
Centigrade or Fahrenheit readout
Battery life : approximate 1 year with alkaline batteries ( not included )
Clock operating temperature from 0°Cto 50°C ( 32°F to 122°F )
Indoor, Outdoor Temperature measuring range from -20°C to 60°C (-4°F to 140°F )*
Temperature resolution 0.1°C
*If using the wireless transmitter with temperature below 32°F or above 122°F, user are recommended to
use Lithium battery to enhance batteries life
Location of Controls
Getting Start
Batteries Installation
Batteries installation of the clock
Insert 2 “AA” batteries in polarity (+) and (-) as indicated
Close the battery cover
The low battery icon will show in the clock window when your batteries need replacing
Batteries installation of wireless transmitter
Insert new batteries into clock
Insert 2 “AA” size batteries in proper polarity (+) and (-) as indicated
Close the battery door
Warning : Do not mix old and new batteries
Do not mix alkaline, standard ( carbon-zinc ), or rechargeable ( nickel cadmium ) batteries.
To ensure proper functioning of your clock with outdoor temperature, please follow this power up
procedure :
1. Insert new batteries into the main unit.
2. Insert batteries into the remote temperature transmitter.
Do not touch any other buttons or settings on your clock. It will automatically receive the remote
temperature.
Remote Temperature
Upon power up of the transmitter ( or pressing the reset button ), the temperature RF signal is
immediately sent to the clock. The clock attempts to receive the RF temperature signal for 5 minutes. The
clock refreshes the RF temperature every 3 minutes.
If the RF temperature signal is not received within 5 minutes after power up of the transmitter (or
pressing the reset button), blank “---“ will appear in the outdoor temperature window of the clock. In this
case, press the HR/SYNC button of the clock. The clock will attempt outdoor temperature reception for
another 6 minutes.
After the remote temperature shows in the lower LCD panel place the remote transmitter outside in a
shaded, dry area to protect it as if under an umbrella.
Try relocating the clock or the transmitter if the clock does not display the outdoor temperature after 6
minutes.
The RF Temperature signal indicator in the clock’s outdoor temperature window will show the following:
Interference
Signals from other household devices, such as entry controls, door bells and home security systems, may
temporarily interfere with the clock and cause reception failure. This is normal and does not affect the
general performance of the product. The transmission and reception of temperature reading will resume
once the interference has stopped.
Setting the Clock
1. Slide the LOCK/ALM/TIME/CAL switch to TIME and the time will flash on the display. Press the
HR/SYNC and MIN/CLEAR buttons until you reach the desired time.
2. Slide the switch to CAL and the year and date will flash on the display. Press the YEAR, MONTH
and DATE buttons until you reach the desired calendar setting.
3. Slide the switch to LOCK position.
4. Press the 12HR/24HR button to choose the desired display format. “AM” and “PM” display only in
the 12HR format.
5. Press °C /°F button to choose the Centigrade or Fahrenheit scale. Both the indoor and outdoor
temperature will display in the chosen scale.
Setting the Alarm
1. Slide the LOCK/ALM/TIME/CAL switch to ALM position. The alarm time blinks.
2. To set the alarm time, press the HR/SYNC and MIN/CLEAE buttons until the desired alarm time
appear on the display.
3. Slide the switch to LOCK position.
To Activate the ascending alarm
1. Slide the SNZ/ON/OFF ALM switch to ON position, the sign will appear on the time display .
The alarm function is activated.
2. When the alarm sounds, press the snooze/light bar. The alarm will sound the same time the next
day.
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