Needle Microprobe 29g, 1 cm long, 0.025 secFor more details when selecting an appropriate temperature probe, see the Temperature Probe Details page. Features 0. 025 sec time constant Not isolated 200c Max. Temperature 5 ft lead length Similar to MT 29 1 but has a blunt tip. Good for instant skin and surface temperatures, liquids Applications Fast response needle probes for instant readings in tissue, semisolids, liquids, very small specimens, powders and materials. Needle tip is sealed to