This will enter the long term calibration drift correction mode. You have to point the thermometer at something that you know the exact temperature of. You have to buy a very expensive piece of equipment to do this, so I recommend not entering this mode.
This video is great. Complainers can explode.
😊Until I watch your video I am no't sure about how to turn on this device 😎👍
My favourite part at 4:50
Does this shoot a laser beam ?
Nope
My extech is showing Lo all the time what's the problem
Are you using it on skin or other objects?
what is the F3 for when u press mode for the 3rd time?
This will enter the long term calibration drift correction mode. You have to point the thermometer at something that you know the exact temperature of. You have to buy a very expensive piece of equipment to do this, so I recommend not entering this mode.
what Lo means
This will only measure temperature from 89.6 - 108.5. If you point at something outside of that range, you will get either HI or LOW message.
A better video does not contain: kids, pets, and any disrupting noises.