The VelociCalc® 9545 model with a telescopic straight probe is a versatile and easy-to-use tool for optimizing HVAC system performance, commissioning, plant maintenance, critical environment certification, and duct traverses. It allows for simultaneous measurement and data logging of multiple ventilation parameters using a single probe with multiple sensors.

In addition to measuring air velocity, the VelociCalc® 9545 calculates volumetric flow and actual/standard velocity, and displays humidity as % relative humidity, wet bulb or dew point temperature. It can display up to three measurements simultaneously and has a data logging capacity of 12,700+ samples and 100 test IDs.

Included with the instrument are a telescopic straight probe, hard carrying case, 4 alkaline batteries, USB cable and LogDat2™ Downloading Software, operation and service manual, and calibration certificate. An articulated probe version is also available (9545-A).