Product Description
Professional Low Range Phosphate Colorimeter for Aquariums, Pools & Freshwater TestingThe Hanna HI713 Checker HC is a portable, professional-grade low range phosphate colorimeter designed for accurate phosphate (PO₄³⁻) measurement from 0.00 to 2.50 mg/L in aquariums, swimming pools, freshwater, and water quality applications. This handheld photometer delivers lab-quality results in the field with simple operation—just add reagent, insert the cuvette, and read phosphate concentration on the easy-to-read LCD display.Key Features:
Low Range Precision: Measures phosphate from 0.00 to 2.50 mg/L (ppm) PO₄³⁻ with ±0.04 mg/L accuracy—ideal for aquariums, pools, and low-phosphate applications
Portable & Handheld: Compact Checker HC design fits in your pocket for on-site testing anywhere
Lab-Quality Results: Advanced photometric technology delivers accurate, repeatable measurements comparable to benchtop instruments
Simple Operation: Easy three-step process—fill cuvette, add reagent, read result—no complex procedures
LCD Display: Large, easy-to-read screen shows phosphate concentration in mg/L (ppm)
Auto-Off Function: Conserves battery life with automatic shutdown after 10 minutes of non-use
CAL Check: Built-in validation feature verifies meter performance for quality assurance
Complete Kit: Includes meter, sample cuvettes, reagents for initial testing, and carrying case
Technical Specifications:
Model: HI713
Parameter: Phosphate (PO₄³⁻)
Range: 0.00 to 2.50 mg/L (ppm)
Resolution: 0.01 mg/L
Accuracy: ±0.04 mg/L ±4% of reading @ 25°C
Method: Adaptation of ascorbic acid method
Light Source: LED @ 525 nm
Light Detector: Silicon photocell
Battery: 1 x 1.5V AAA (included)
Auto-Off: After 10 minutes of non-use
Dimensions: 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5 inches)
Weight: 1 lb
Country of Origin: Romania
SKU: HI713
Barcode: 765105745859
Applications:Essential for aquarium phosphate monitoring (algae control, plant health), swimming pool water quality (algae prevention, water clarity), freshwater testing, drinking water quality verification, environmental water testing, laboratory analysis, and any application requiring accurate low-range phosphate measurement. Perfect for aquarium hobbyists, pool service professionals, water treatment operators, and environmental consultants.What's Included:
HI713 Phosphate Low Range Checker HC
Sample cuvettes with caps (2)
Phosphate Low Range reagents for initial testing
1.5V AAA battery
Instruction manual
Instrument quality certificate
Rigid carrying case
Why Test Phosphate Levels?Phosphate testing is critical for preventing algae growth and maintaining water quality. In aquariums, excess phosphates promote nuisance algae growth that competes with plants and corals—optimal levels are typically below 0.05 mg/L for planted tanks and near zero for reef tanks. In swimming pools, phosphates are nutrients that fuel algae blooms—even with proper chlorine levels, high phosphates (above 100-200 ppb or 0.1-0.2 mg/L) can cause persistent algae problems and cloudy water. The HI713's low range (0-2.5 mg/L) is perfectly suited for these applications where phosphate levels should be minimal.How to Use:
Fill cuvette with 10 mL water sample to line
Add HI713 reagent packet and mix thoroughly
Wait for color development (2 minutes)
Insert cuvette into HI713 Checker HC
Press button to read phosphate concentration in mg/L
Convert to ppb if desired: ppb = mg/L × 1000
Reagent Availability:Replacement reagents available separately as HI713-25 (25 tests) and HI713-100 (100 tests). Each reagent packet is pre-measured for consistent, accurate results.Maintenance & Care:Clean cuvettes with distilled water after each use. Store in protective case when not in use. Replace battery when low battery indicator appears. Use CAL Check feature periodically to verify meter performance. Keep reagents stored in a cool, dry place.Note: Reagents sold separately after initial supply is used. For best results, use fresh reagents and follow all testing procedures carefully. Regular CAL Check validation recommended for quality assurance.
