Climomaster Hot-Wire Anemometer – 6501 Series probes can measure temperature and/or humidity along with air flow. Other probes are designed for use in turbulent or high-velocity airflow and some are miniaturized for use in really tight spaces like those encountered when checking the cooling profile of a circuit board. The unit comes standard with 20,000 record storage capacity and advanced data logging capability. It can also be ordered with a pressure sensor and analog output if desired. Many additional accessories such as software, extension rods, hands-free case and special cable lengths are also available.

All of these advanced options and extremely well-crafted components have helped in making the Climomaster Hot-Wire Anemometer – 6501 Series. the top choice for some primary applications, including HVAC Testing, IAQ Investigations, Critical Environment Certification, HEPA Filter Performance Testing, Turbulent Air Testing, Manufacturing Process Controls, and more. All units come standard with an automatic barometric pressure compensation feature. Which helps maintain their excellent accuracy rating even in extreme altitudes

Additional information

Weight 7000 g


Main Unit Specifications
Differential Pressure
Range -5 to 5 kPa
Resolution 0.01 kPa
Accuracy ±3% of READING or ±0.01 kPa whichever is greater
General Specifications
Analog Output DC 0 to 1 V
Interface USB / Printer
Datalogging Stores up to 20000 measurement data
Power Supply 6 × AA Batteries or AC Adapter (AC 100 to 240 V , 50/60 Hz)
Weight 0.9 lbs (400 g)
Operating Environment 41 to 104°F (5 to 40°C) with no condensation
Storage Environment 14 to 122°F (-10 to 50°C) with no condensation
Standards CE-mark
Warranty 2 year
What’s Included Meter, Operation Manual, Carrying Case, USB Cable, AA Batteries, 2m Probe Cable


Unit Model 6501-0E 6501-CE
Differential Pressure O
Analog Output O
USB Interface O O
Printer Interface O O

Climomaster Probe Specifications

Measurement Specifications
Air Velocity
Range 2 to 9840 FPM (0.01 to 50 m/s)
Resolution 1 FPM (0.01 m/s)
Accuracy +/- 2% of READING or +/- 0.015 m/s (+/- 3 FPM) whichever is greater
Range -4 to 158°F (-20 to 70°C)
Resolution 1°F (0.1°C)
Accuracy +/- 1°F (+/- 0.5 °C)
Relative Humidity
Range 2.0 to 98.0 %RH
Resolution 0.1%
Accuracy ±2.0% (at range of 2 to 80%) ±3.0% (at range of 80 to 98%)
General Specifications
Operating Environment -4 to 158°F (-20 to 70°C) with no condensation
Storage Environment 14 to 122°F (-10 to 50°C) with no condensation
Standards CE-mark
Warranty 2 year
Standard Accessories Probe, NIST Certificate


Probe Model 6531-2G 6541-2G 6561-2G 6542-2G 6533-2G 6543-2G 6551-2G 6552-2G
Air Velocity Range (FPM) 2 to 6000 2 to 6000 2 to 9840 2 to 6000 2 to 1000 2 to 1000 2 to 6000 2 to 6000
Airflow Direction Uni Uni Uni Omni Omni Omni Omni Omni
Probe Type Rod Rod Rod Needle Spherical Spherical Miniature Miniature
Air Velocity O O O O O O O O
Temperature O O O O O O
Relative Humidity O O




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