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SPECIFICATIONS
Range:
 

–58 to 302°F (–50 to 150°C)

Resolution:   ±0.1° from –20.0 to 200.0°, 
 

1° below –20.0 and above 200.0°

Accuracy: 

±1.0°C between –20.0 and 100°C

Sampling 
rate:
 

1 second in Celsius mode 

 

10 seconds in Fahrenheit mode

Construction: Stainless steel and plastic

OPERATION
1. Slide the ON/OFF switch (3, Fig. 1) to ON to 

turn the unit on.

2. Slide the °C/°F switch (1, Fig. 1) to °F to display 

the temperature in Fahrenheit or to °C to display 
in Celsius.

3. Insert the stem into air, semi-solid, or liquid 

material to be measured.

4. Slide the ON/OFF switch (3, Fig. 1) to OFF to 

turn the unit off.  To conserve battery life, always 
turn the unit off when not in use.

BATTERY REPLACEMENT
Erratic readings, a faint display, or no display are 
all indications that the battery is low and needs 
to be replaced.  To replace the battery, remove 
the battery cap, located on the top of the unit and 
marked open, by turning it in the direction of the 
arrow (counterclockwise).  Remove the battery  
and insert a new Cat. No. 1039 battery.  Make 
certain that the positive (+) side is facing you.  
Incorrectly installed batteries may damage elec-
tronics.  Replace the Battery Cap.

Figure 1.

 

      1       2       3

Description

°

C/

°

F Switch

- Display

3

 - ON/OFF Switch

www.calcert.com

sales@calcert.com

1.800.544.2843

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