Operation Guide DQ-981
3
USING THE LIGHT
Pressing the
SNOOZE/LIGHT button (
6
)
turns on the light and illuminates the display for easy reading in the
dark.
Important!
Overuse of the light can shorten battery life.
THERMOMETER AND HYGROMETER FUNCTIONS
A built-in sensor measures temperature and humidity, and shows the measured value on the display.
The readout from the temperature sensor can also be switched between Celsius (°C) and Fahrenheit (°F).
Temperature Measurements
The temperature display shows “LO” for temperatures below –19.9°C (–3.8°F) and “HI” for temperatures above
49.9°C (121.8°F).
Though temperature readings are displayed up to 0°C (32°F) and greater than 41°C (105°F), note that such
readings are actually outside the guaranteed temperature range of this clock.
Switching between Celsius and Fahrenheit
Push the
°C/°F button (
3
)
to select either Celsius (°C) or Fahrenheit (°F).
Celsius (°C)
Fahrenheit (°F)
°C
°F
°C/°F button (
3
)
Humidity Measurements
The humidity display shows “LO” for humidity below 10% and “HI” for humidity above 90%.
Whenever the current temperature is outside the range of 0°C to 49.9°C, the humidity display will show “– –”.
BATTERY REPLACEMENT
Replace batteries whenever the display of the clock becomes dim and diffi cult to read.
1. Open the battery compartment cover as shown in the illustration.
2. Remove all of the old batteries.
3. Load a full set of new batteries. Make sure that their positive (+) and negative (–) ends face in the correct
directions. If you load batteries incorrectly, they can burst and damage the clock.
4. Press the
RESET button (
5
)
. Be sure to press the
RESET button (
5
)
after replacing batteries.
5. Replace the battery compartment cover.
Battery precautions
Keep batteries out of the reach of small children. If a battery is accidentally swallowed, contact your physician
immediately.
Be sure to load the batteries with their positive (+) and negative (–) ends facing correctly.
Never mix old and new batteries, or batteries of different brands.
Never charge the batteries.
Should batteries ever leak while in the clock, wipe out the fl uid with a cloth, taking care not to let any get onto
your skin.
Replace the batteries at least once a year, even if the current batteries are working properly.
SPECIFICATIONS
Accuracy at Normal Temperature:
±60 seconds a month
Calendar System:
Auto-calendar pre-programmed from the year 2000 to 2099
Alarm:
Daily Alarm, Snooze Alarm (7 repeats)
Thermometer Functions:
Measuring range: –19.9°C to 49.9°C (–3.8°F to 121.8°F)
Though temperature readings are displayed up to 0°C (32°F) and greater than 41°C (105°F), note that such
readings are actually outside the guaranteed temperature range of this clock.
Celsius (°C)/Fahrenheit (°F) switching
Temperature Sensor Precision:
±2°C (±4°F) in range of 0°C to 40°C (32°F to 104°F)
Hygrometer Function:
Measuring range: 10% to 90%, when temperature is 0°C to 40°C (32°F to 104°F)
Humidity Sensor Precision:
±10%, when temperature is 5°C to 40°C (41°F to 104°F)
Other:
LED light; 12/24-hour timekeeping
Battery:
Two AA size batteries (Type: R6P)
Battery Life:
Approximately 1 year
1 minute alarm operation per day
5 seconds light operation per day
Operating Temperature:
0°C to 40°C (32°F to 104°F)