I'm trying to repair a broken baby monitor and found an interesting looking part. It looks like an thermocouple but I'm not sure. Do you have any ideas?
See board picture.
Answer
To me, this looks more like a thermistor than a thermocouple.
Can you measure the resistance across this part? If it's zero Ohms (short), then it's a thermocouple. If it's on the order of 10kΩ at room temperature, then it's a thermistor.
What materials are the wires made of? If they are both copper, then it's certainly not a thermocouple.
Can you describe what was this connected to inside of the unit? If it's connected directly to the microcontroller, then it's probably a thermistor. Thermocouples have weaker signal than thermistors, so they require more signal conditioning.
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