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TSI 9565-NB Multi-Function Ventilation Meter with Differential Pressure Sensor and Straight Air Velocity Probe, Non-Bluetooth
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TSI 9535-A VelociCalc Air Velocity Meter with Articulated Probe and Basic Data Logging, 0 to 6000 ft/min Velocity Range Box color may vary: Test Probes: Amazon.com: Industrial & Scientific
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