Measure common colorimetric water and wastewater parameters using the Thermo Scientific™ Orion™ AQUAfast AQ4000 colorimeter. This instrument has 65 pre-programmed methods, automatic selection of four wavelengths and timer. Use auto-test ampoules with Auto-ID barcodes to simplify sample preparation and tests. Ampoules contain pre-measured liquid reagent and fill with the exact volume of sample. The colorimeter reads the barcode and automatically identifies the parameter and initiates the test. This IP67 waterproof meter records 100 data points and offers an average battery life of 2,500 hours intermittent use.