0.2 µg/L minimum detection (with kit #481300) with 0.1 >1.00 µg/L color density. Can be used with all Arsenic kits. Arsenic Quick Scan for water quality testing was designed to yield high-precision results both in the lab and on-site. This portable density measurement device scans the reacted test strip and reports a density value. The user then matches that density value against a supplied look-up table and records the ppb (µg/L) result. This battery-operated instrument makes quick work out of level determination by removing the need to match colors; thus reducing color-matching errors and yielding reliable results. The Arsenic Quick Scan unit can be used with all Quick and Quick II series water quality test kits.