Description Specifications Literature Video Description The TSI VelociCalc® Air Velocity Meter 9535-A has the ability to measure velocity, temperature, and calculate flow. The 9535-A meter simultaneously measures and logs several ventilation parameters using a single articulated probe with multiple sensors.Included Items Instrument with articulated probe Hard carrying case 4 alkaline batteries USB cable and LogDat2™ Downloading Software Operation and service manual Calibration certificate State of California Proposition 65 WARNINGCancer and Reproductive Harm - www.P65Warnings.ca.gov. Product Specifications Velocity Range: 0 to 6,000 ft/min (0 to 30 m/s) Accuracy:±3% of reading or ±3 ft/min(±0.015 m/s), whichever is greater Resoultion:1 ft/min (0.01 m/s) Duct Size Dimensions:1 to 250 inches in increments of 0.1in. (1 to 635 cm in increments of 0.1 cm) Volumetric Flow Rate Range:Actual range is a function of velocity and duct size Temperature Range:0 to 200°F (-18 to 93°C) Accuracy:±0.5°F (±0.3°C) Resolution:0.1°F (0.1°C) Literature & Docs Operation and Service Manual Product Specifications Videos TSI Alnor Velocicalc Instrument Set up for a Duct Traverse | FLW, Inc Performing a Duct Traverse Using TSI Alnor VelociCalc | FLW, Inc. Accessories