User's Guide
Hygro-Thermometer Clock
Model 445702
Introduction
Congratulations on your purchase of the Extech 445702 Hygro-Thermometer Clock. This instrument displays Time (12/24 hour clock),
Temperature (C or F), and Relative Humidity % simultaneously. The housing can be wall mounted or placed on a table-top using the
built-in tilt stand. Features include MIN/MAX displays and programmable Alarm Clock. Careful use of this device will provide years of
reliable service.
Specifications
Display
Ranges
Resolution
Accuracy
Power supply
Low Battery
Dimensions
Weight
Three LCD views for Time, Temperature, & Relative Humidity
Temperature: -10 to 60
o
C (14 to 140
o
F); Relative Humidity: 10 to 85%
Temperature: 0.1
o
C/F; Humidity: 1%
Humidity: ± 6% in the 25 to 80% range & from 0 to 50
o
C (32 to 122
o
F)
Temperature: ± 1
o
C from -10 to 50
o
C and ± 1.8
o
F from 14 to 122
o
F One
(1) ‘AAA’ 1.5V Battery
Battery icon appears on the lower LCD when the battery is to be replaced
109 x 71 x 20mm (4.3 x 2.8 x 0.8")
Approx. 113g (4 oz.) with battery
Description
1. Clock display
2. Temperature display
3. Humidity display
4. Temp/Humidity Sensor
5. MAX / MIN button
6. RESET / AL (Alarm) button
7. CLOCK button
8. ADVANCE button
9. Alarm on-off switch
10. Alarm speaker
11. Tilt Stand
12. Battery compartment
13. Temperature units switch
14. Wall mount
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