Hi guys! Im looking for a temperature sensor that can measure 140°c ambient temperature and compatible with arduino. Any recommendations? Thankyou! I hope you guys can help me.
Analog or digital? Waterproof?
Analog, and im will use it to determine the ambient temperature near a fire
A thermocouple will do this just fine. It won't be hurt if you place it in the fire for a short while.
Or a 100k NTC. But the fire will burn it quite easily, and the usable range is much less than that of a thermocouple.
MonitoringDrone:
Analog,
Why analogue?
wvmarle:
A thermocouple will do this just fine. It won't be hurt if you place it in the fire for a short while.Or a 100k NTC. But the fire will burn it quite easily, and the usable range is much less than that of a thermocouple.
wvmarle:
A thermocouple will do this just fine. It won't be hurt if you place it in the fire for a short while.Or a 100k NTC. But the fire will burn it quite easily, and the usable range is much less than that of a thermocouple.
Oh i see 100k ntc will good. I wont direct it to fire just ambient temperature. Is ntc 100k have a probe?
Choosing a temperature sensor for your application can be an overwhelming task especially for a beginner. The current range of sensors in the market today is broader than ever, and it is easy to feel lost if you are not familiar with calibrations. I would consider something on the line of a PT 100 sensor, with that you do not have to do cold junction compensation and it is more accurate.
sensitivity: While both sensor types respond quickly to temperature changes, thermocouples are faster. A grounded thermocouple will respond nearly three times faster than a PT100 RTD. ... Accuracy: RTDs are generally more accurate than thermocouples. RTDs have typically an accuracy of 0.1°C, compared to 1°C for most. Try this link: What temperature probe is better for you? | Omega Engineering
Good Luck & Have Fun!
Gil
Previous person (@gilshultz) is correct. PT100 is the way to go. I had used it in 1 of my applications.
There are already sensor modules out there with waterproof PT100 probes.
And it provides arduino sketch code so it is naturally arduino compatible.
As for RTDs you likely will have to make your own circuit to interface RTD to your arduino.
Resistance temperature detectors (RTDs).
this will be good type of sensor for your application...
it's range : -200 to 650°C