Our digital IR themometer is ideal for body readings, and have a very small error margin. It is actually more accurate than standard mercury themometer. And can avoid the harm of mercury absorbed by traditional mercury themometer to human body. The Non-Contact Themometer is designed for all ages, adults, infants and elders. Taking your temperature with our IR themometer is as simple as pointing, and pressing a button. It uses infrared technology. infrared thermometer for heat detection without physical contact