964 Thermoanemometer Straight Probe by TSI
964 Thermoanemometer Straight Probe by TSI
The TSI 964 Thermoanemometer Straight Probe is a plug-in probe for the VelociCalc 9565-P meter, designed to measure air velocity, temperature, and humidity in one tool. It’s ideal for duct traverses, fume hood face velocity checks, filter testing, cleanroom verification, and HVAC commissioning.
With a velocity range of 0 to 9,999 ft/min (0–50 m/s), temperature from 14 to 140°F (-10 to 60°C), and humidity from 5 to 95% RH, the 964 delivers accurate, repeatable results. Its straight, telescoping design allows easy placement across ducts and diffusers.
Exposure Hazards This Equipment Detects
Air Velocity (CFM / ft/min)
Humidity (% RH)
Temperature (°C / °F)
Equipment Specifications
| Component Role: | Plug-in probe for the VelociCalc 9565 meter — determines which parameters the meter measures and their ranges |
| Measured Parameters: | Air velocity, Temperature, Relative humidity |
| Measurement Range: | Velocity: 0 to 9,999 ft/min (0 to 50 m/s). Temperature: 14°F to 140°F (-10°C to 60°C). Humidity: 5% to 95% RH |
| Resolution: | 1 ft/min, 0.1°F, 0.1% RH |
| Accuracy: | Velocity: ±3% of reading or ±3 ft/min, whichever is greater. Temperature: ±0.5°F. Humidity: ±3% RH |
| Compatible Instruments: | TSI VelociCalc 9565 |
| Data Storage Capacity: | 26,500+ samples and 100 test IDs (with the VelociCalc 9565 meter) |
| Battery Run Time: | Approximately 12 hours continuous on 4 AA batteries (with the VelociCalc 9565 meter) |
| Construction: | Straight, telescoping design for easy placement across ducts and diffusers |
| Intended Use: | Duct traverses, fume hood face velocity checks, filter testing, cleanroom verification and HVAC commissioning |
Manufacturer Resources
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