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SPECIFICATIONS:

Display:

 

¾” LCD

Range:

 

–58 to 572 °F (–50 to 300 °C)

Resolution:

  0.1° from –20 to 200, 

 

outside this range

Accuracy:

 

Cat. No. 4272

 

±0.3°C at tested points, ±1.0°C otherwise

Cat. No. 4372 

±1.0°C

Sampling Rate:

 1 second

Features: 

Moving head with adjustable angle of 45/90/135/180°, 

stainless steel sensor probe, memory recall, temperature 

(°F/°C) selectable, data hold/test function, low battery 

indicator, and 16” Lanyard

CONTROLS/INDICATORS 

H/T - 

hold/test

F/C - 

temperature selection

MAX/MIN -  Minimum and maxi-mum  temperature  

recorded.

ULTRA™ THERMOMETER ACCURACY

Ultra™ thermometers are tested at selected test points 

to be within tighter than normal tolerances to assist 

in providing improved accuracy. Other points will not 

necessarily fall within the same accuracy as those found 

at the selected test points, but will be within an accuracy 

of ±1.0°C. 

OPERATION

1. Extend probe to 45/90/135/180° to switch on the unit.

2. Press F/C button to select the desired temperature

units.

3. Press H/T button once “HOLD” flashes on the display 

to retain reading for recording. Press H/T again to 

release and return display to current reading.

4. Press MAX/MIN button once. “MIN” sign displays 

which represents the minimum tem-perature tested. 

Press MAX/MIN button again. “MAX” sign shows to 

indicate the maxi-mum temperature testing. Current 

reading will restore automatically after 3 seconds.

ALL OPERATIONAL DIFFICULTIES 

If this unit does not function properly for any reason, 

replace the battery with a new high-quality battery (see 

“Battery Replacement” section). Low battery power can 

occasionally cause any number of “apparent” operational 

difficulties. Replacing the battery with a new fresh battery 

will solve most difficulties. 

BATTERY REPLACEMENT 

Erratic readings, a faint display, no display, or a battery 

icon appearing on the display are all indicators that the 

battery must be replaced.  Slide the panel on the back of 

the unit in the direction of the arrow. Replace exhausted 

battery with a new alkaline AAA battery.  Slide the battery 

compartment cover back into place.  Replacement  

battery Cat. No. 1105.

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