I have a temperature sensor on a board which measures room temperature. I am convinced that the sensor is faulty, so I need to identify it so that I can replace it.
The sensor has two pins and is square in profile, about 3mm x 3mm x 2mm, with no identification markings, although there are two white patches on the top, and a semi-circular marking on one face, but that may be just chance. There is some sort of white sleeve on the pins.
How am I to go about getting the correct replacement? I've got a very good multi-meter. Thanks.