description lumens meter measures light intensity up to 1860 foot-candles (20,000 lux) with resolution to 0.1 fc/1lux. ideal for indoor lighting tests and for checking security and safety illumination in parking garages, night time atc areas, stairwells, landings, and hallways. california proposition 65 warning. features measure light levels in foot-candle (fc) or lux units using a precision photo diode with cosine and color correction filter zero function backlit lcd to view in dimly lit areas auto power off with disable specifications acme tools brand name extech acme tools part number lt510 assembled depth (in) 1.5 assembled height (in) 9 assembled weight (lbs) 1 assembled width (in) 4 california proposition 65 warning required yes case included no country of origin taiwan display style digital globaltradeitemnumber (gtin) 00793950475119 hand held yes height (in) 9 housing material plastic internet product code (ipc) 18ff4c6ce18 light meter type exposure meter manufacturer warranty 1 year measuring range 0 to 1860fc package weight 1 package weight (lbs) 1 power source battery upc 793950475119 weather resistant yes weight (lbs) 1 weight (oz) 16