NIST traceability available for this sensor.
Factory-calibrated for 0.01" increment; � 4% plus one tip.
Available for models measuring in 0.01" increments only.
If metric measurement is desired, use UNITS button to convert to the nearest 0.2 mm.
Available in two versions:
* US (United States): US version uses US radio frequency from 902 to 928 MHz (on units equipped with wireless transmission) and a 0.01" rain collector. Station reports in US standard units. Includes US power adapter.
* USM (United States, metric): US/Metric version uses US radio frequency from 902 to 928 MHz (on units equipped with wireless transmission) and a 0.2mm rain collector. Station reports in Metric units. Includes US power adapter.
NIST Traceability
In the USA, the National Institute of Standards & Technology (NIST) develops and maintains the standards of measurement to which all others are ultimately traced. NIST standards allow companies to ensure product precision against specific measurments. Davis Instruments is proud to participate in the NIST program.
What Is Traceability?
Traceability as defined by NIST: property of the result of a measurement or the value of a standard whereby it can be related to stated references, usually national or international standards, through an unbroken chain of comparisons all having stated uncertainties." (International Vocabulary of Basic and General Terms in Metrology (VIM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML, 2nd ed., 1993, definition 6.10)