TMX2P Puncture Probe. 15ft / 4.5m leads. Probe Type Surface / Liquids (shaft only). Common Uses Internal temperatures of frozen materials / Air ducts. Probe Shaft Length of 6 in. Response time of 6 seconds. Temperature Range of -40˚F to 257˚F / -40˚C TO +125˚C, Fits: TM150, TM250, TM350, TM360 & SH450 Series