• Measurement Principle：UV Absorption at 254 nm
• Federal Equivalent Method (FEM)：Yes, EQOA-0410-190
• Linear Dynamic Range：0 to 250 ppm
• Resolution：0.1 ppb
• Measurement Interval：10 s (Data averaging options: 1 min, 5 min, 1 hr)
• Response Time, 100% of Step Change：20 s, 2 points
• Internal Data Logger Capacity：16,383 lines (10-s meas. = 1.9 days; 1-min avg = 11 days; 5-min avg = 1.9 mo; 1-hr avg = 1.9 yr)
• Quiet Long-Life Internal Air Pump