Attributes . Operating temperature: 17 to 23?C, ?0.02?mm/m or ?3%?rdg, whichever is higher (0 to ?2?mm/m) ?4%?rdg (?2 to ?5?mm/m), Operating temperature: 0 to 40?C, ?0.02?mm/m or ?5%?rdg, whichever is higher (0 to ?2?mm/m) ?6% rdg (?2 to ?5?mm/m) . Names