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1                                     40102F       Ver. 1.2    03/00

 

 

INSTRUCTION MANUAL 

 

Model 40102F/C

 

Recording Thermometer Clock 

 

 

 Indoor/Outdoor temperature display 

 

 Real time clock display 

 

 MIN/MAX mode displays 

 

 Selectable 

°

C/

°

F units 

 

1. INTRODUCTION   

Congratulations on your purchase of Extech’s Recording Temperature Clock. This 

professional meter, with proper care, will provide years of safe reliable service. 

 

 

2. SPECIFICATIONS 

Measurement ranges

 

 

Indoor temperature

 

14 to 122

°

F (-10 to 50

°

C) 

 

Outdoor temperature

 

-40 to 176

°

F (-40 to 80

°

C)

 

Resolution

 

0.5

°

F or 

°

C

 

Accuracy

 

±1

°

F or 

°

C

 

Power supply

 

One (1) 'AAA' 1.5 V battery

 

Sensor cable length

 

Outdoor temperature sensor cable length: Approx. 79" 

(2m)

 

Dimensions/Weight

 

3.5x3.5x1" (89x89x25mm) / 4.5 oz. (128g)

 

 

3. FRONT PANEL DESCRIPTION  

1-LCD Display 

2-MIN/MAX Button 

3-Date/Input Temp. Toggle Button 

4-Indoor sensors 

5-Outdoor sensor 

6-Tilt Stand 

 

4. OPERATION 

4.1 

Powering the unit.

 The supplied battery is installed in the battery compartment but 

has a strip of plastic between the conductors. Remove this strip and reinstall the 

battery to power the meter. The meter is now ready to be programmed for proper time 

and date. You have approx. 20 seconds to begin programming the meter before it 

defaults to the factory setting. Anytime you wish to reprogram the meter, simply 

remove and reinstall the battery. 

4.2 

Programming Time and Date:

 Once the meter is powered, the "minutes" portion of 

the time display will flash. Use the MIN/MAX button to scroll to the present minute 

 

NOTE

: Units (degrees 

°

C / 

°

F) 

Selector Switch, Battery/Sensor 

Compartment & Wall Mounting Holes 

are on rear of unit 

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