The RTDTemp101A is a compact, RTD-based temperature data logger. Includes standard calibration certificate. Read More >

Key Features:

  • Compact Size
  • Configurable Alarm Limits
  • Accepts 2, 3 or 4-wire External RTD Probe


MadgeTech recommends annual calibration.


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The RTDTemp101A is an RTD-based temperature data logger with a compact design. When used with a 2, 3 or 4-wire external RTD probe, this device is capable of measuring temperatures from -200 °C to +850 °C (-328 °F to +1562 °F).

The RTDTemp101A features user-specified high/low alarm limits and can even be programmed to start up to 18 months in advance. With a 10-year battery life and the ability to store up to 1,396,736 time and date stamped readings.

The RTDTemp101A is compatible with the latest MadgeTech 4 Software making starting, stopping, and downloading simple and easy. Graphical, tabular, and summary data is provided for analysis and can be viewed as customizable engineering units.

RTD probes sold separately.


Memory 1,396,736 readings
Reading Rate 1 reading every second to 1 reading every 24 hours
Baud Rate 115,200
LED Indicators Red & Green
Push-Button Start Yes
Battery Life 10 years typical at a 15 minute reading rate
Dimensions 1.4 in x 2.1 in x 0.6 in (35 mm x 54 mm x 15 mm)
Operating Environment -40 °C to +80 °C (-40 °F to +176 °F), 0 %RH to 95 %RH non-condensing
Required Interface Package IFC200
Approvals CE


Temperature Sensor External 100 Ω RTD (Sold Separately)
Temperature Range 18 Ω to 400 Ω, -200 °C to +850 °C (-328 °F to +1562 °F) (Probe Dependent)
Temperature Resolution 0.0001 Ω, 0.01 °C (0.018 °F) (Probe Dependent)
Temperature Calibrated Accuracy ±0.015 Ω, ±0.05 °C (±0.09 °F) (Probe Dependent)

Calibrated Accuracy Range: *18 Ω to 200 Ω, -200 °C to +265 °C
(-328 °F to +509 °F)
*Calibrated accuracies based on standard MadgeTech calibrations
for 0 Ω to 200 Ω range.


RTDTemp101A Product User Guide
RTDTemp101A Specification Sheet

Support Videos

RTDTemp101A | Changing the Battery

RTDTemp101A | How to Wire an RTD Probe


Part Numbers

RTDTemp101A — 901520-00


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