General Purpose Digital Stowatch - Red. Large display and control buttons. Split interval function. N.I.S.T. traceable certificate of compliance available.
Dimensions: 2¾" x 2½" x ¾"
Comes with a NIST certificate of calibration. The NIST certificate specifies that the standards against which the product has been certified or calibrated were themselves calibrated by the National Institute of Standards and Technology (N.I.S.T.), or with N.I.S.T. calibrated equipment under conditions specified by N.I.S.T.