Specifications

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The internal temperature sensor located in almost all ACR data loggers is the ET-016 thermistor. Thermistors are
non-linear which means the accuracy of the sensor varies over the entire temperature range of the logger. The
graph below outlines the accuracy curves for the ET-016 thermistor. ACR data loggers with this thermistor on-
board include: SmartReader, SmartReader Plus, OWL (if using standard range), JR, and Nautilus. These curves
also apply to the ET-016 external thermistor probes with lengths less than 30 meters (100 feet).
Temperature Accuracy Curves
Reference
ACR Catalog 2010.qxp:ACR Catalog may2 2007.qxd 9/13/10 1:02 PM Page 48