Suitable for harsh industrial environments, T&D TR-71wf WiFi Temperature Dataloggers send data to cloud where it can be monitored from anywhere. Two-channel model monitors temperature from -40 to 230°F using external thermistor sensor. Whenever product’s temperature goes out of specification, wireless loggers will immediately send warning email over Internet or LAN network. Alert icon and graph showing color-coded values give users time to take corrective actions.