This unit consists of optics system, photoelectric sensor, signal amplifier, signal process circuit and LCD. The optics 

system collects the infrared energy emitted by object and focus onto the sensor. Then the sensor translates the 

energy into electricity signal which will be turned out to be readings shown on the LCD by the signal amplifier 

and signal process circuit. Equipped with RS232 data export function, this product is surely to be a great 

help to your work.