InfraRed Thermometer PG-IRT1603

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The PG-IRT1603 InfraRed Thermometer has a 1 second measurement time and can switch between forehead and ear temperature measurements to help you keep your school, office, clinic or workplace safe for employees, customers, patients and others. Licensed by Health Canada.

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The  contactless InfraRed Thermometer PG-IRT1603 has many attractive features to help you maintain a safe environment for customers and employees.

Its forehead temperature reading capability provides contactless temperature monitoring of visitors, employees, students and others. You can use these readings  to check their health status before they come into close contact with others in your work place.

Moreover, you can take these readings with little or no risk of becoming infected yourself.

It is therefore more useful than a digital thermometer like the DT-01B, for efficiently monitoring temperatures of large numbers of individuals with no risk of cross contamination.

In addition to forehead readings, the Infrared Thermometer PG-IRT1603 also allows you to take temperature readings of the eardrum or of other body parts such as the wrist or underarm. We provide suggestions for when to use each of the available temperature measurement modes below.

The thermometer also has a sleek and fashionable design that will make it a pleasure to use and own over the years.

It also carries a Health Canada Class 2 MDALL license.

Infrared Thermometer PG-IRT1603 – Features

The Digital InfraRed Contactless Thermometer measures temperatures within the range 34.0ºC to 42.2°C with an accuracy of 0.1°C.

Other useful features of the Digital InfraRed Contactless Thermometer include:

  • Measures temperature in 1 second;
  • Can measure the temperature of the forehead, ear or other objects;
  • You can use it to measure the temperatures of both adults and children;
  • Has a fever alarm that uses green, orange and red back light colors to indicate temperature range (see illustrated image in the gallery);
  • Voice indication of fever risk level after completion of temperature measurement;
  • Stores the last 9 temperature measurements for later recall;
  • Turns off automatically after 30 seconds of inactivity.
  • Switchable between Fahrenheit and Celsius readings.

This Contactless InfraRed Thermometer uses two 1.5V AAA batteries.

How To Clean Your InfraRed Thermometer PG-IRT1603

You should clean your infrared thermometer IRT1603 at intervals of 6 months or thereabouts, or more frequently if necessary. The thermometer works by focusing the infrared radiation emitted by the object or body part that it is measuring through its lens and onto an internal thermopile. As a result, if the lens is not clean, the accuracy of your readings may be compromised.

To clean your infrared thermometer PG-IRT1603:

  • Use a soft piece of cloth or cotton to swab the thermometer in water or a 70/30 mix of alcohol and water;
  • Carefully wipe the thermometer starting at the lens and then going on to the rest of the body;
  • Allow the lens to air dry before using the thermometer. Do not apply any cleaning fluids to the lens as they may scratch it or leave it in a cloudy state;
  • Do not submerge the thermometer in liquid of any kind.


Store your thermometer out of the reach of children and pets in an ambient temperature between 4 and 65 degrees Fahrenheit.

How to Get The Most Accurate Readings From Your Infrared Thermometer PG-IRT1603

We suggest below three hints or tips to follow to get the most accurate temperature measurements from your infrared thermometer.

Tip 1 – Know your thermometer’s distance to spot ratio.

Every infrared thermometer model is designed with a specific distance to spot ratio in mind. This is the diameter of the spot from which you take the temperature measurement compared to your distance from the spot.

For example, if your thermometer has a distance to spot ratio of 12:1, it is capable of taking the temperature of a spot 1 inch in diameter when you are 12 inches away. Alternatively, if you want to measure the temperature of a spot 3 inches in diameter, you should not stand more than 36 inches (3 feet away).

If you try to stand  further away than 36 inches and you wish to measure the temperature of a spot that is three inches in diameter, you will be at risk of getting an inaccurate measurement. That’s because you will be including the temperatures of areas outside the spot you want to measure.

Higher quality infrared thermometers tend to have larger distance to spot ratios. They will therefore allow you to stand further away while accurately measuring the temperatures of smaller spots.

Tip 2 – Ensure You Have A Clear Line Of Sight To The Spot You Are Measuring

As we have mentioned above, infrared thermometers measure temperature by focusing infrared radiation from the spot they are measuring through their lens and onto an internal thermopile. The thermopile converts the infrared energy into electric energy to allow a temperature measurement to take place.

For this measurement to be accurate, it is therefore important to ensure that none of the infrared radiation leaving the spot you are measuring is lost or distorted in any way. This is why it is important to ensure that your thermometer lens is clean. It is also important to ensure that it does not have any scratches.

Fogging of the lens can also impair the accuracy of an infrared thermometer. That can happen, for example, if you bring the thermometer from a cold room into a warmer one. Allow the thermometer to adjust to the new room temperature (and for its lens to clear) before you start taking temperature measurements with it.

Finally, you need to be sure that the area of the body you are measuring is not obscured by clothing or even body hair. Whenever possible, you should point the thermometer at the subject’s naked skin. This means that you should ensure that there is no hair obscuring the subject’s forehead. If you are taking the measurement via the wrist or armpit, be sure that there is no clothing (or body hair) obscuring the measurement spot.

This is one of the reasons that eardrum temperature measurements are generally the most accurate. The eardrum is less likely to be obscured by clothing or hair than either the forehead, wrist or armpit.

Tip 3 -Try To Minimize The Distortion From Ambient Room temperature

When you are taking the temperature of a human subject, you are ideally trying to measure core body temperature. This would be. the temperature of the organs located deep inside the body such as the liver, for example.

If you are using an infrared thermometer to take a temperature in a room that is unusually warm or cold, there is a risk that the temperature you are measuring will be distorted by the ambient (room) temperature. This risk is especially high when you choose exposed areas such as the forehead for your temperature measurement.

The armpit, for example, is less exposed to ambient temperature and will therefore give a reading that is closer to core body temperature than the forehead. The ear drum is likely to be even less exposed to room temperature and is therefore likely to give an even more accurate reading.

1 review for InfraRed Thermometer PG-IRT1603

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  1. Carol B

    The best thermometer I’ve ever owned. So easy to use, effective and efficient as well. I genuinely love it.

    Temperature can be taken without physical contact at multiple times within seconds, thereby enabling several persons to be tested with the one device/instrument.

    Also included is a booklet with detailed information/instructions if needed.

    I highly recommend it!

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