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 saving 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.
which is a bit on the expensive side 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.
Here Is Our List For Infrared Laser Temperature Sensor Guns.
Etekcity Lasergrip 774 Non-contact Digital Laser IR Infrared Thermometer Temperature Gun, Yellow/Black
Nubee 8380H Non-contact Infrared Thermometer Temperature Gun with Laser Sight MAX Display
EnnoLogic Temperature Gun Dual Laser Non-Contact Infrared Thermometer -58°F to 1202°F – Accurate Digital Surface IR Thermometer eT650D