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The telescopic temperature probe allows the technician to check air temperature in most situations, inside the ceiling duct without needing to use a ladder. The magnet and hook allow you to leave it in place so you can leave it while doing other tasks.


  • Measures Vent Temperature To Evaluate A/C Performance
  • Features Easy to Read Digital Face
  • 5" Flexible Probe with Protective Cover
  • For All Types Of A/C Systems.
  • Reads in either °F or °C
  • Press HOLD button to lock current temperature reading
  • Patent No. US10768053B2
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Length (Closed): 10.5 inches
Length (Extended): 36 inches
Probe Length: 5-1/2 inches
Probe Diameter: 1/8 inch
Battery Type (included): LR44
Temperature Range: -58°F to 572°F (-50°C to 300°C)
Tolerance: 2°F (1°C)
Display Size: 1-3/8 inch x 1/2 inch

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Why does the display continously reset?: The battery cover must be in the locked position to prevent screen reset.