We have several models of data loggers that are suitable for use with RTD's. RTD sensors provide improved temperature measurement accuracy over thermocouples. The main tradeoff is that they have a more limited temperature measurement range than thermocouples. An RTD works by changing resistance in a very predictable way in a proportion to changes in temperature. To make the measurement, the data logger will source a known current or through the RTD and measure the voltage across it. From this it can calculate the resistance and then convert the resistance to temperature. Because the lead wires which attach the sensor to the data logger can cause measurement errors due to their internal resistance, 3 or 4 wire RTD's can be used which allow the data logger to compensate for the effects of this resistance.

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A1-02b A1-02b Wireless Temperature Data Logger Wireless temperature monitor that can handle various external temperature sensors. Internal temperature External Type K thermocouple, RTD, Thermistor and 0-5V inputs 1 Digital input Battery or AC power Up to 250' range 250 Sample buffer View InformationRequest Pricing & InformationProduct Specifications (PDF)

A1-13 A1-13 Wireless Temperature Data Logger Wireless temperature monitor that can handle up to 3 RTD inputs. Ambient temperture sensor 3, 100 Ohm RTD inputs Battery or AC power Up to 250' range 250 Sample buffer View InformationRequest Pricing & InformationProduct Specifications (PDF)

A2-05 A2-05 Ethernet Temperature Data Logger A LAN-Wired Temperature monitor designed for measuring temperatures with connections for external RTD and Thermocouple sensors. Inputs for 2 RTD's and one thermocouple Fast and easy to set up Encrypts all data, completely secure Automatically sends data to Accsense secure servers Mix and match with Accsense wireless monitors Standard Ethernet Connection to the Internet Multiple monitors can be viewed in a single account Supports Power over Ethernet View InformationRequest Pricing & InformationProduct Specifications (PDF)

RTR-52Pt RTR-52Pt Wireless RTD Temperature Data Logger Connector for external RTD temperature sensor Water resistant case Measuring range: -199.9°C to 600°C Operating range: -40°C to 80°C 16,000 point memory Works with the RTR-57C/U, RTR-50 or RTR-5W Data Collectors Models starting at $229.00 View InformationRequest Pricing & InformationProduct Specifications (PDF)

TR-81 TR-81 RTD Temperature Data Logger 2 Measurement Channels Uses standard 3 wire PT-100 probes Measurement range -200°C to 600°C Stores 8,000 readings/channel Record from once-per-second to once-per-hour Includes Windows software to setup, monitor, download, graph and export data View InformationRequest Pricing & InformationProduct Specifications (PDF)