The TSI Alnor 801291 is a stainless steel sheathed immersion temperature probe for your HM675 or HM685 hydronic manometer. The probe has a length of 6" (15.24 cm) and a diameter of 0.125" (3.175 mm). When using this probe, the hydronic manometer can display the temperature measurements as discrete or continuous.
Product made in USA and comes with NIST Certificate of Calibration.