Infrared laser temperature sensor guns are very handy for an HVAC technician. I can’t count how many times I have used mine when I otherwise would have had to use a ladder.
I know getting a ladder is not a big deal and it has to be done all day long but why do it if you don’t have too. I have worked at a few companies that require temperature reading at the Supply and Return Air on every call.
Some of the Returns can be crazy high up, placed on high ceilings which a small ladder can’t reach, causing a whole effort to un-strap a ladder and carry it through someone’s home simply to get a temperature reading.
Having an infrared laser temperature reader is a lifesaver in moments like that. Getting in and out quickly also saves time and money.
I have bought several over the years and they have been a real benefit in many scenarios.
One of the main things I found to look for is what is called the D/S Ratio which stands for Distance Spot Ratio.
A D/S Ratio will number look like this “8:1” or “12:1”.
So, for example, a temperature gun that reads 8:1 can read a spot 1 inches wide from 8 inches away. At eight feet it would need 1 foot of space to get a good read.
There are many good units available with some of our favorite picks below.
As always be sure to read reviews on Amazon, here, or elsewhere to be sure a unit is the right pick for you.
*This post contains affiliate links.
Our Picks for Best HVAC Infrared Laser Temperature Sensor Guns
- Fluke 561 HVAC Pro
- Etekcity 1022D
- Extech IRT600
- EnnoLogic eT650D
Fluke 561 HVAC Pro Infrared Thermometer, -40 to +1022 Degree F Range
The Fluke 561 HVAC Pro is a laser temperature gun built for the heating and cooling professional.
The unit is very well built with the lens housing made of solid metal when most other units are made of plastic.
The Fluke 561 HVAC Pro is a very good laser gun that is worth a look for any HVAC technician.
Etekcity 1022D Dual Laser Digital Infrared Thermometer Temperature Gun Non-contact -58℉~1022℉ (-50℃ ~ 550℃) with Adjustable Emissivity & Max Measure for Meat Refrigerator Pool Oven (Not for Human)
The Etekcity 1022D is a low-cost unit that displays the temperature at the back.
The laser comes out the tip when the trigger is pulled with the temperature displayed at the back of the unit.
It has been available for a few years and is a budget unit that works well enough in many scenarios.
Extech IRT600 Dual Laser IR Thermal Condensation Scanner
The Extech 42515 cost more than other units but has many nice features.
It also has a condensation alarm to show high water levels of an area.
ennoLogic Temperature Gun (NOT for Body Temp) – Accurate High Temperature Dual Laser Infrared Thermometer -58°F to 1922°F – Digital Surface IR Thermometer eT1050D
The EnnoLogic eT650D is a good mid-range unit.