Sper Scientific 810045C Continuous Alarm Timer, NIST Certificate of Calibration
Visual and Audible Continuous Alarm Timer
Select either a bright flashing yellow LED visual alarm or an audible alarm. A memory recalls the last timer setting for reuse. Model 810040 is often used by testing organizations, including Law School Admissions Council (LSAC). Built in stand for bench top use, clips to a pocket, or sticks to any metal surface with a magnetic back. 2 AAA batteries included. N.I.S.T. traceable certificate of compliance available.
Dimension: 3” x 2” (75 x 55 x 15 mm)
Weight: 2 oz (57 g)
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.