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K-Type Thermocouple Thermometer. Use with TPI Smart Probe Apps to perform differential temperature tests.

SP341 Sub-mini K type Thermometer

K-Type Thermocouple Thermometer Smart Probe


  • Uses any K-Type probe with sub-mini connector
  • Connects to smart phone and uses the TPI Smart Probe App or the TPI View app.
  • Perform differential temperature measurements with one instrument
  • Up to 6 SP341 smart probes can connect to a single mobile device (most devices)
  • Auto field calibrate to +/-1°C system accuracy in the range of -1°C to 49°C using field calibrate mode
  • 3 Year Limited Warranty
  • Low Battery Indicator (Red LED flashing on)
  • Battery type : AAA x 3

TPI Smartphone Apps
Apps for both smartphones and tablets allow easy documentation that you can share with your customer. Reduce paperwork and save time! Perform differential temperature tests and more. See all available in the tab below.

RRP exc. VAT

Where to Buy TPI Products

TPI Smartphone Apps

TPI offers several apps for use with your Smart Devices, each with differing features. TPI Smartphone apps allow easy documentation that you can share with your customer. Reduce paperwork and save time! Download both as available for your device to command the full range of smartphone & tablet features!

TPI Smart Probes App
Use with All TPI Smart Probes

SP565: Hot wire velocity; Measuring of air flow velocities
SP341: K-Type Thermocouple Thermometer. Perform differential temperature tests
SP620: Measure differential pressure & volume flow with Tightness Test
SP1000: Measure CO2

Click to view or download product PDFs

SP341 Data Sheet

SP341 Manual

SP341 Sub-mini K-type Thermometer Specifications
Range-50 °C ~ 1350 °C ( -58 °F ~ 2462 °F )
Resolution0.1°C / 0.1°F
Accuracy±1.6 °C ( -50 to 0 °C )
±(0.3% of reading, + 1°C) ( 0 to 600 °C)
±(0.4% of reading, + 1°C) ( 600.1 to 1350 °C)
±2.9 °F ( -58 to 32°F )
±(0.3% of reading, + 1.8°F) ( 32 to 1112°F)
±(0.4% of reading, + 1.8°F) ( 1112.1 to 2462 °F)
** K-type sensor accuracy is excluded.
Unit°C / °F
Operation temperature0 °C ~ 50 °C ( 32°F ~ 122 °F )
Storage temperature-20 °C ~ 60 °C ( -4 °F ~ 140 °F )
Battery life timeAbout 75 hours
Battery typeAAA x 3 (4.5V)
Weight97.5 g ( 3.44 oz )
CommunicationBluetooth 4.2

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