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Go-Cal Pro Air Flow Calibrator

The Go-Cal Pro Air Flow Calibrator simplifies air sampling equipment flow rate calibration. The system uses a venturi/critical orifice flow path with a highly accurate pressure differential sensor for precise airflow measurement.


For more information on Go-Cal Pro Air Flow Calibrator or to request a quote, contact our team now:


Calibrate air sampling pumps to set & verify flow rates with complete confidence – anywhere you work. Lightweight and easy to operate, the Go-Cal Pro is the must-have precision flow meter for OEHS professionals.


• Small, lightweight, durable design, and no moving parts
•  Hand held ergonomic design makes it easier to hold and perform data entry
•  Charges with a standard USB-C cable

Easy to Use

•  Easy to setup (just connect tubing and start pump)
•  Fast stabilisation – gives instantaneous reading
•  Large Color Touch Screen Display
•  Averages flow over user selected time
•  Customisation of local languages and preferred units of measure
•  Bluetooth® Communications Options (coming soon)

Sampling Integrity

•  Creates digital traceability which ties sampling chain together
•  Flow Verification Event Storage
•  Flow Meter report provides event information and information about the flow meter being utilised (i.e. serial number, date of last calibration)

Advanced Calibration Technologies

•  Ability to select Sample Periods
•  The user may select a specific sample time to be averaged
•  Internal sensors standardise flow rates using reference temperatures and pressures (STP)
•  STP-corrected flow rates facilitate data comparison across different environmental conditions, eliminating the need for external calculations
•  Users can set corrected temperature and pressure values according to various standards
•  On board computing can data log the calibration events and perform statistical analysis on the deviations between readings
•  Users can define statistical parameters for percent deviation over the sample period
•  Improved user interface capabilities with full touch screen keyboards for completing data input, and user defined fields for maintaining sample integrity
•  Displayed date of last calibration, serial numbers, and reminders for next calibration due date
•  Calibrators can generate printable calibration reports that include sample information, saved instrument settings, and sample flow rate results

Go-Cal Pro Air Flow Calibrator Specification

Flow RangesLow:  5 to 600 cc/min
Standard:  600 to 5,000 cc/min
High:  4,000 to 30,000 cc/min
(Volumetric and STP flow averaging available)
Accuracy±1% of reading or 2 cc/min, whichever is greater at standard conditions (21.1OC and 101.3kPa)
Environmental SensorsAmbient Temperature and Pressure present in flow stream
Averaging FunctionUser selectable sample sampling time in seconds. Four pre-sets and user defined (5 – 5,000 sec.)
Gas CompatibilityNon-corrosive, Non-condensing
Flow DirectionPressure and Suction
AC Charger5 VDC
Charging CableUSB-C to USB-A Cable
BatteryRechargeable lithium nickel cobalt aluminum oxide (NCA) battery
Battery Charge TimeLess than 6 hours
Operation TimeUp to 24 hours*  Up to 400 calibrations on a single charge**
Operating Temperature0 to 45OC (32 to 113OF)
Storage Temperature-20 to 60OC (-4 to 140OF)
Operating Humidity0 – 85% RH, non-condensing
Operating Pressure700mbar to 1546mbar (525mmHg to 1160mmHg)
Operating Altitude-1,000m (-3280ft) to approximately 3050m (10,000ft) above sea level
DisplayMulti-color LCD capacitive touchscreen
ConnectivityUSB-C to PC for Gilian Connect.  Bluetooth(R) option for Gilian Mobile (optional at time of purchase by customer)
SmartCalSmartCal capable with GilAir Plus Communications Dock. Accessory Cables Required (not included).
Report GenerationFlow verification events are recorded and saved as viewable reports on the unit and are available for download through provided software.
External Dimensions (HxWxD)5.0in x 3.6in x 2.0in
Tube Adapters0.375in OD straight barbed (STD & HIGH),
0.250in OD straight barbed (LOW)
Weight0.75lbs (0.4kg)
IP RatingIP54
Warranty24 months from date of purchase
Certifications/ApprovalsEN 61010-1, CE, and RoHS compliant
Approved for shipping and transport per UN/DOT 38.3 and IEC 62133-2 (2nd Edition).

*   Running continuously with screen dimming function.

** Based on 30 second averaging and pump adjustments up to 2 minutes each, full brightness.


Health & Safety

From the Noise at Work Act to the Physical Agents Directive (Vibration) we have instrumentation to ensure you stay within the law.