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The TSI Alnor VelociCalc air velocity probes are available in four styles - thermo-anemometer, rotating vane, indoor air quality (IAQ) and thermocouple probe models. All probes are designed for use with the TSI Alnor VelociCalc Series multi-function meters.
IAQ Probe, VOC (ppm), CO2, Temp, Humidity
TSI VOC probes are pre-calibrated, plug-and-play accessory probes for multi-purpose meters Models 7575 Q-Trak monitor and 9565 VelociCalc meter. When combined with these meters, long-term data analysis can be performed and reported which is useful for monitoring or investigating the indoor environment. The VOC Probe 987 measures high concentration (ppm) VOC, temperature, CO, and humidity