User guide
Operating Instructions
The Combo Thermometer is not only a non-contact infrared thermometer but also a conventional penetration
thermometer. Choose the mode required, either the IR mode (infrared) or the TC On (probe). To use the non-
contact measurement, simply press the IR button and point the thermometer at the target to display the surface
temperature (in the upper display). To use the probe, press the probe button, unfold and insert into the object
being measured, wait until the temperature stabilizes and the reading will be displayed in the lower display.
Please note: the Combo Thermometer will only display either the IR or probe reading.
Minimum or Maximum Mode (Infrared only)
To utilize the Combo’s minimum or maximum mode, first turn the instrument on by pressing the Infrared
measurement button, then press the mode button once for minimum or twice for maximum function. The MIN or
MAX icon will flash, then press the measurement button to confirm the minimum or maximum mode. The Combo
will display the minimum or maximum reading only.
Lock Mode (Infrared only)
The lock mode is particularly useful for continuous monitoring of temperatures. To utilize the Combo’s lock
mode, first turn the instrument on by pressing the Infrared measurement button, then press the mode button
three times for the lock mode function. The LOCK icon will flash, then press the Infrared button to confirm the
lock measurement mode. The Combo will continuously display the temperature for up to 60 minutes or until the
Infrared button is pressed.
°C or °F Mode
To change the Combo from °C to °F or from °F to °C, first turn the instrument on by pressing the Infrared
measurement button, then press the mode button four times, the °C or °F icon will flash, press the Infrared
button to change, then press again to confirm the mode.
Emissivity
The Combo is supplied with a default emissivity of 0.95. The emissivity of the Combo can be changed from
0.1 (10E) to 1 (100E). Changes should only be carried out by experienced personnel. To change the Combo’s
emissivity, first press the Infrared button, then press the mode button five times for emissivity function. The 95E
will flash on the LCD screen, then press the Infrared button to adjust the emissivity value, press the mode button
again to exit the set up screen. For information relating to the emissivity of specific materials, please contact
ThermoWorks or visit www.thermoworks.com. Note: non-contact infrared thermometers are not recommended
for use in measuring the temperature of shiny or polished metals.
Specifications
Measuring Range (IR) -27 to 428˚F / -33 to 220˚C
Accuracy (IR)* ±2%, or 2˚C, whichever is greater
Repeatability (IR) 0.1˚C at 25˚C, 0.5˚C at 80˚C
Measuring Range (probe) -67 to 626˚F / -55 to 330˚C
Accuracy (probe) ±1%, or 1.8˚F / 1°C, whichever is greater
Response Time (probe) 10 to 15 seconds typical
Resolution 0.1˚ from -9.9 to 199.9°; 1° beyond
Units Switchable C or F
Emissivity Default 0.95, adjustable 0.1 to 1.0 in 0.01 increments
Distance/Target Ratio 5:1 (1” target diameter at 5” distance)
Battery CR2032, included
814-065
Combo Thermometer
Utah, U.S.A.
Ph: 801-756-7705 Fax: 801-756-8948
www.thermoworks.com
Made in China
814-065 Combo Thermapen
* IR accuracy can be affected by the emissivity
setting, target spot size, and rapid changes in
ambient temperature.