Constructed of high-quality, specially treated borosilicate glass
2. Available contact-enhancing aluminum bushings minimize thermometer self-heating and allow faster thermal response
3. Center well constructed with 11 or 13 mm inside diameter precision-bore glass tubing
4. A properly formed mantle, consisting of two liquid-to-solid interfaces, is easily and quickly realized using the K29iX Direct Expansion Cooler (not included). With a proper mantle, accuracy is guaranteed for five years to be within +0.0000°C/-0.0002°C of the ideal fixed point.