I am having trouble in choosing a cheap and good non contact temperature sensor for my project. Please give some suggestions.Also, I have PTC thermistor , can it be used for body temperature measurement.
Most non-contact temperature sensor are light based, and are called pyrometers. The detection range of most PTC thermistors is outside the standard range of body temperature. So using it for body temperature measurement is not always wise.
Do inform us what you would consider cheap and good non contact temperature sensor.
Most pyrometers cost in the range of INR 800 to INR 5000 when bought in single quantities. You will have to contact the suppliers to find out bulk pricing for such sensors.
For me cheap is below INR800. If I use a thermocouple or a thermopile will it satisfy my need.