The TSI Alnor 964 Air Velocity Probe for VelociCalc Meter is a measuring probe that is used with the TSI Alnor Model 9565. The air velocity probe accessory has a length of 40 in (101.6 cm) and a base diameter of 0.51 in (13 mm). The TSI Alnor 964 has a probe tip diameter of 0.28 in (7 mm) and a NIST certification of calibration.
The TSI Alnor 964 has a temperature measuring range of -18 to 93 °C (0 to 200 °F) with an accuracy of ±0.3 °C (0.5 °F) and a velocity measuring range of 0 to 9,999 ft/min (0 to 50 m/s) with an accuracy of ±3% of reading or ±3 ft/min (0.015 m/s). The air velocity probe has a humidity measuring range of 0 to 95 %rH with an accuracy of ±3 %rH.
The TSI Alnor 964 has a temperature measuring range of -18 to 93 °C (0 to 200 °F) with an accuracy of ±0.3 °C (0.5 °F) and a velocity measuring range of 0 to 9,999 ft/min (0 to 50 m/s) with an accuracy of ±3% of reading or ±3 ft/min (0.015 m/s). The air velocity probe has a humidity measuring range of 0 to 95 %rH with an accuracy of ±3 %rH.