Description Description Testo Waterproof NTC Immersion/Penetration Probe Specs NTCTechnical dataMeasuring range-58 to +302 °FAccuracy±0.5% of rdg. (+212 to +302 °F)±0.4 °F (-13 to +167 °F)±0.7 °F (remaining range)ProbesTechnical dataConnection cable listFixed cableProbe diameterØ .20 inProbe length4.5 inCable length1.2 mResponse time10 sec. Includes Videos Resources Software / App