chek-mate Calibrator, 5 to 30 L/min, with UKAS Certification

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Part Number: 375-50300

chek-mate Calibrator, 5 to 30 L/min, with UKAS Certification

chek-mate Calibrator with CalChek, 5 to 30 L/min, includes a 9-volt alkaline battery (calibrator hosetail larger diameter for higher flow pumps), CalChek automatic calibration, and UKAS traceable calibration certificate.

The Proof is in the Performance! With a volumetric accuracy of 1% of reading, chek-mate® is the smart choice for air sampling pump calibration! Now available with CalChek capability for direct communication to CalChek-ready pumps for automatic calibration.

Performance Profile

Flow Measurement Range

Low Flow Chek-mate:
20 to 500 ml/min (volumetric)

Medium Flow Chek-mate:
500 to 5000 ml/min (volumetric)

High Flow Chek-mate:
5 to 30 L/min

Display Resolution 0.001 L/min

Low Flow Chek-mate:
20-50 ml/min ± 2.5% of reading
50-500 ml/min ± 1% of reading

Medium Flow Chek-mate:
500-750 ml/min ± 2.5% of reading
750 to 5000 ml/min ± 1% of reading

High Flow Chek-mate:
5 to 30 L/min ± 1% of reading


9-V alkaline primary (disposable) PP3 / 6LR61 / 1604A or equivalent, or
8.4V NiMH secondary (rechargeable) PP3 / 6HR61 / 8.4H5 or equivalent

Automatic power off timer – 15 minutes

Operating Temperature Range  32 to 104 F (0 to 40 C)
Operating Barometric Pressure 700 mbar to 1090 mbar (20.7 inch Hg to 32.2 inch Hg)
Operating Altitude Sea level to approximately 10,000 ft (3050 m) above sea level
IP Rating (enclosure)  IP40
Overall Dimensions
(including hose tail)
7 x 3.3 x 1.3 in (17.8 x 8.4 x 3.3 cm)
Weight Models below 9 ounces (255 grams)
Certification CE Marked
  • Calibrator Type : Electronic
  • Calibrator Flow Measurement Range : 5 - 30 L/min
  • CE Marked : Yes
  • Automatic Calibration Compatible : Yes

How chek-mate Works
The SKC chek-mate calibrator is a highly reliable orifice-type airflow meter that incorporates sensors to measure pressure drop across a fixed orifice. Sensors automatically correct for changes in air temperature and atmospheric pressure to provide accurate volumetric flow rate readings. Volumetric accuracy is 1% of reading and highly repeatable.