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HiTemp140-PT Data Logger

High Temperature Data Logger with a 24 inch Bendable Probe. Includes ISO17025 accredited calibration certificate.

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The HiTemp140-PT is a rugged, submersible, temperature data logger that can operate up to 140 °C (284 °F) and has an accuracy of +/-0.1 °C (0.18 °F). The device features a 24 in flexible stainless steel probe with either 1 inch or 5 inch sheath, depending on user preference, which can be used for measuring extended temperatures up to 350 °C (662 °F). The probe is durable and can be spiraled, bent or angled in any direction, making it easy to log temperatures in hard to reach places.

The HiTemp140-PT records date and time stamped readings, and has non-volatile solid state memory.

Graphical, tabular and summary data is provided for analysis within the MadgeTech software, where it can be viewed in °C, °F, K or °R. The data can also be automatically exported to Excel® for further analysis.

Click here to view our probe selection chart


Temperature Sensor 100 Ω Platinum RTD
Temperature Resolution 0.01 °C (0.02 °F)
Temperature Calibrated Accuracy ±0.1 °C/±0.18 °F (20 °C to +140 °C/68 °F to +284 °F)
±0.3 °C/±0.54 °F (-20 °C to +19.99 °C/-4 °F to +67.98 °F)
±0.4 °C/±0.72 °F (-40 °C to -20.01 °C/-40 °F to +-4.02 °F)
Probe Temperature Range -200 °C to +350 °C (-328 °F to +662 °F) (Body of Logger Cannot Exceed 140 °C)


Memory 32,700
Reading Rate 1 reading every second up to 1 reading every 24 hours
Baud Rate 125,000
Battery Life 1 year typical (1 minute reading rate at 25 °C/77 °F)
User Replaceable Battery
Dimensions Body: 1.75 in x 0.97 in dia. (45 mm x 25 mm dia.)

HiTemp140-PT-1: Probe tip is 1.7 in x 0.125 in dia. (42 mm x 3.2 mm dia.)
Bendable portion is 22 in x 0.062 in dia. (559 mm x 1.6 mm dia.)

HiTemp140-PT-5: Probe tip is 4.8 in x 0.125 in dia. with 1 in x 0.188 dia. handle (121 mm x 3.2 mm dia. with 25 mm x 4.8 mm dia. handle)
Bendable portion is 22 in x 0.062 in dia. (559 mm x 1.6 mm dia.)
IP Rating IP68
Submersible Yes
Operating Environment -40 °C to +140 °C (-40 °F to +284 °F)
0 %RH to 100 %RH (Body of Logger Cannot Exceed 140 °C)
Required Interface Package IFC400
Approvals CE
Weight 0.5000 LBS