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Operation Guide DQR-300

4

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 that come with the clock.

Should batteries ever leak while in the clock, wipe out the fluid 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.

The batteries that come with the clock lose some of their power during transport and storage.

THERMOMETER FUNCTIONS

Both the main unit and the sub-unit are equipped with their own temperature sensors. Temperature data measured
by the sub-unit is sent by wireless transfer to the main unit. You can toggle the main unit display between the main
unit temperature reading and the sub-unit temperature reading. This makes it possible to view both the indoor and
outdoor temperature on the main unit display.

Temperature Measurements

Both the main unit and the sub-unit take temperature measurements every 16 seconds.

The temperature display shows “LO” for temperatures below –50

°

C (–58

°

F) and “HI” for temperatures above

70

°

C (158

°

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  (

0

) to select either Celsius (

°

C) or Fahrenheit (

°

F).

 Celsius (

°

C)

Fahrenheit (

°

F)

°

C/ 

°

F button

 (

0

)

°

C

°

F

Switching between Main Unit and Sub-unit Temperature Data

Press the SELECT button (

B

) to toggle the display between the main unit (INDOOR) temperature and the sub-

unit (OUTDOOR) temperature.
Main unit temperature:  INDOOR indicator displayed
Sub-unit temperature:  OUTDOOR indicator displayed

The display does not change to the sub-unit (OUTDOOR) temperature if no data has been received from the sub-
unit yet.

Holding down SELECT button (

B

) for about two seconds causes the display to continually toggle between the

main unit and sub-unit temperature at five-second intervals.

Main unit

Sub-unit

SELECT button

 (

B

)

INDOOR

OUTDOOR

High Temperature and Low Temperature Memory

The following data is stored in memory automatically.
Main unit high temperature and low temperature
Sub-unit high temperature and low temperature

To clear the high temperature and low temperature data memory, press the CLEAR button (

9

).

New data starts to be stored after memory is cleared.

CLEAR button (

9

)

MAX/MIN TEMP. button (

7

)

Main unit high temperature and low temperature

Sub-unit high temperature and low temperature

Current temperature and humidity

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