Infrared laser temperature sensor guns are very handy for a HVAC technician. I can’t count how many times I have used mine when I otherwise would have had to of used 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 to. I have worked at a few companies that require temperature reading at the supply and return air on every call.
Some of the return air’s 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 a infrared laser temperature reader is a life saver in moments like that. Getting in and out quickly also saves time, money and work.
Needing a new one I began reading reviews on Amazon on which would be the next best one to get. After reading the reviews I bought the Extech 42515 Infrared Thermometer with Type K Input. It is a bit on the expensive side compared to other units but does what I need it to.
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.
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
- Etekcity Lasergrip 774
- Extech 42515
- Nubee NUB8550H
- EnnoLogic eT650D
Etekcity Lasergrip 774 Non-contact Digital Laser Infrared Thermometer Temperature Gun -58℉~ 716℉ (-50℃ ~ 380℃), Yellow and Black
The Etekcity Lasergrip 774 is a low-cost unit that display the temperature at the back.
Extech 42515 Infrared Thermometer with Type K Input
The Extech 42515 cost more than other units but has many nice features.
Nubee NUB8550H Digital Infrared Thermometer -58°F~ 1022°F (-50°C ~ 550°C) with Adjustable Emissivity & Max Display Non-Contact Temperature Gun with Laser Thermometer for Cooking Meat Kitchen Refrigerator Pool Oven, Orange and Black
The Nubee NUB8550H is another low-cost unit that works well.
Like most all budget laser temperature guns it can be off by 1-2 degrees but is a good unit for quick general readings.
ennoLogic Temperature Gun Dual Laser Non-Contact Infrared Thermometer -58°F to 1202°F – NIST Option Available – Accurate Digital Surface IR Thermometer eT650D
The EnnoLogic eT650D is a good mid-range unit.