• Microprocessor-based meters measure free chlorine, total chlorine, cyanuric acid and pH. • Delivers quick, accurate, repeatable results. • Chlorine and cyanuric acid measurements do not require calibration. • Chlorine measurements based on DPD method. • Lightweight with waterproof housing. • Large LCD and user-friendly self-diagnostic warning messages. • Can measure more than 3000 tests using a single set of four AAA alkaline batteries. • Auto-ranging capabilities provide accurate results at the press of a key. • One-time blanking for all parameters and ranges when measuring the same sample. Blanking value is stored in memory even if batteries are replaced. • No light shield required. • Auto shut-off after 10 minutes of nonuse to conserve battery life. • Dimensions: 2.7”W x 6.1”L x 1.8”H. • Warranty: 2 years. Power: 4 AAA batteries. • Supplied with batteries, reagents, sample vials and rugged carrying case. Specifications: Automatic range selection: 0 to 1.99 ppm (free and total chlorine) 2.0 to 6.0 ppm (free and total chlorine) 5 to 90 ppm (cyanuric acid) 5.9 to 8.2 pH Accuracy: ±0.02 ppm, ±0.2 ppm, ±4 ppm, ±0.1 pH