EZO™ RTD Temperature Circuit


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There is no shortage of temperature probes out there, and the most accurate of all is the platinum RTD probe. But, converting the resistance of platinum to an actual temperature is unusually complicated. Fortunately, the Atlas Scientific EZO-RTD Circuit makes taking high accuracy readings from a platinum RTD probes easy. The EZO-RTD Circuit can work with any class of 2, 3, or 4 wire platinum RTD probes and has a sensing range of -126.000 °C to +1,254 °C.

RTDResistance Temperature Detector
Range-126.000 °C − 1254 °C
Accuracy+/– (0.1 + 0.0017 x ̊C)
Response time1 reading per sec
Supported probesAny type & brand PT-100 or PT-1000 RTD
CalibrationSingle point
Temperature output°C, °K, or °F
Data protocolUART & I2C
Default I2C address102 (0x66)
Operating voltage3.3V − 5.5V
Data formatASCII
Onboard Data Logger50 Readings
Electrical Isolation not needed
Circuit dimensions13.97mm x 20.16mm (0.55″ x 0.79″)
Weight1.76 grams

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