YSI 900 [250900Y] Free and Total Chlorine Colorimeter. The YSI 900 Chlorine Colorimeter is a rugged, waterproof, single parameter instrument for the measurement of Total chlorine or Free chlorine. Whether you need to measure chlorine in wastewater, chlorine in groundwater, or in pools, this chlorine tester is waterproof with an easy to read display and will provide readings in minutes. The instrument features a real time clock, automatic data logging as well as the ability to export data to a PC or printer using the 900 Series Data Hub for infrared data transfer.
Chlorine Total: Range: 0.1 to 8.0 mg/L; Method: DPD - Total Chlorine Reagent; λ: 530
Power Supply: 4 alkaline AAA batteries; approximately 17 continuous hours or 5,000 tests
Auto Shutoff: 20 minutes after last key press; audible signal
Operating: Range: 5° to 40°C (41° to 104°F); 30-90% relative humidity
Display: Backlit LCD
Memory Capacity: 16 data sets with date and time stamp; automatic
Weight: 260 g (0.5 lbs)
Dimensions: 15.9 L x 7.6 W x 3.8 H cm (6.1 L x 3 W x 1.5 H in)
Interfaces: Infrared interface with the 900 Series Data Hub (optional) for data transfer
Operation: Acid/solvent resistant case; touch-sensitive keypad with audible feedback; factory calibrated; user calibration possible; reset to factory cal