This colour-coded Therma 20 NTC thermistor penetration probe is versatile and strong and incorporates a heavy duty, ribbed, polypropylene handle with a colour-coded end cap - please choose colour from the drop-down or colour blocks. Ideal for many temperature measurement applications including liquids, semi-solids and granular materials. Response time less than five seconds. Probe temperature range -40 to 150deg C. Suitable for use with Therma 20, 22, Therma 20 Plus, 22 Plus and 8100 Plus