Description Specifications Literature Accessories Description The TSI Alnor® Hydronic Manometer HM685 is used to check pump performance in addition to balancing hydronic heating and cooling systems. Without having to change hose connections or instrument valve settings the HM685 model can measure and display differential, high side, and low side pressures simultaneously.Included Items Instrument Hard carrying case (2) 6.7 ft x ¼-in. (2 m x 6 mm) hoses with shut-off valves (2) B&G readout probes (2) P/T gauge adapter probes Power Cord Temperature probe CompuDat™ USB downloading software USB interface cable State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications Pressure Differential Range:±300 psi (±2,068 kPa) Gauge Range:-20 to 300 psi (-138 to 2,068 kPa) Resolution (best):0.001 psi (0.01 kPa) Accuracy:±1% of reading or .072 psi (0.5 kPa) Units:psi, in. H2O, ft H2O, kPa, mm Hg, in. Hg, mm H2O, bar Pressure Connection:¼" 37° flare fitting, Male Temperature Operating (electronics):40 to 113°F (5 to 45°C) Storage:-4 to 140°F (-20 to 60°C) Liquid Media:32 to 180°F (0 to 82°C) Probe:-40 to 250 °F (-40 to 121 °C) Resolution:0.1°F (0.1°C) Accuracy:±0.5°F (0.3°C) from 32 to 160°F (0 to 71°C); max ±2.0°F (1.2°C) from -40 to 32°F (-40 to 0°C) and from 160 to 250°F (71 to 121°C) Units:°F, °C Literature & Docs Owner's Manual Product Specifications Accessories TSI Alnor HM Accessory Kit HMFIT $300.00 Was: Now: $270.00 In Stock Add To Cart View More TSI Alnor Power Cord 801040 $111.00 Was: Now: $99.90 In Stock Add To Cart View More