Extech Extech 445702 Manual

INSTRUCTION MANUAL

Model 445702

Hygro-Thermometer Clock

Congratulations on your purchase of the Extech 445702 Hygro-Thermometer Clock. With proper care, this meter will provide years
of safe, reliable service.

SPECIFICATIONS

Temperature -10oC to +60oC

Humidity 10% to 99% + 6% RH within 25% to 80% RH and 0oC to 50oC or 32oF to 122oF
Power 1 x 1.5V 'AAA' battery

OPERATION

1. Open the battery compartment by pushing the cover on the rear of the instrument downward as indicated by the arrow.
Remove the battery safety strip and the protective cover on the LCD display. The instrument is now ready for use.

2. The temperature units can be changed from oC to oF by sliding the switch located on the rear of the instrument.

3. The upper display indicates the Time.

The middle display indicates Temperature oC or oF
The bottom display indicates the Relative Humidity in %

4. Displaying the minimum and maximum values.
a. Press the MAX/MIN button. The highest value since the Reset button was last pressed appears in the display.
b. Press the MAX/MIN button again to display the lowest value since the Reset button was last pressed.
c. Press the MAX/MIN button again to return to normal display operation.

5. Resetting (clearing) the MAX/MIN memory.
a. Press the RESET button while in the MAX/MIN display to clear the memory and start recording new max/min values.

6. The unit can be mounted on a wall or placed on a flat surface using the fold-out foot.

7. The low battery flag will appear in the display when the battery is low. Replace the battery when this occurs to insure
accurate readings.

8. Setting the clock.

a. Press and hold the CLOCK button while in the normal mode until the minutes digits begin to flash.
b. Press the ADVANCE button to advance the flashing minute digits or hold for rapid advance.
c. Press the Clock button to change to the hour display and repeat step b. to set the digits.
d. Press the Clock button again to return to the normal operating mode.

9. The clock will display in 12 hour mode while oF is selected and 24 hour mode when oC is selected.

Range Accuracy

14oF to 140oF

+ 1.0oC within -10oC to 50oC
+ 1.8oF within 14oF to 122oF

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Visit us at www.TestEquipmentDepot.com

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Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176

FAX [phone] - TestEquipmentDepot.com