Hanna HI7754-11 Pool Line Freshwater

Hanna HI7754-11 Pool Line Freshwater Alkalinity Checker HC

The Hanna HI7754-11 Pool Line Freshwater Alkalinity Checker® HC is a digital handheld colorimeter specifically designed to measure alkalinity levels in freshwater environments, including pools and spas. This device offers a reliable and easy-to-use solution that bridges the gap between basic chemical test kits and professional laboratory instruments.

Using a colorimetric method, the HI7754-11 delivers quick, accurate results by analyzing the color change that develops in the sample—ranging from yellow to greenish-blue—based on the alkalinity level.

Key Features:

• Wide Measurement Range: Accurately detects alkalinity from 0 to 500 ppm (as CaCO₃).

• High Precision: ±5 ppm ±5% of reading at 25°C for consistent, trustworthy results.

• Colorimetric Detection: Employs an LED at 610 nm and a silicon photocell to detect the color change, ensuring objective digital readings.

• Compact & User-Friendly: Small, lightweight, and ideal for home users, pool maintenance professionals, and field testing.

• Auto Shut-Off: Conserves battery life with automatic power-down after 10 minutes of inactivity and 2 minutes after a reading.

Technical Specifications:

• Measurement Range: 0 to 500 ppm (as CaCO₃)

• Resolution: 1 ppm

• Accuracy (@25°C/77°F): ±5 ppm ±5% of reading

• Method: Colorimetric – visible color shift from yellow to greenish-blue

• Light Source: LED @ 610 nm

• Light Detector: Silicon photocell

• Power Supply: 1 x 1.5V AAA alkaline battery

• Auto-Off: After 10 minutes of non-use and 2 minutes after a reading

• Environment: 0 to 50°C (32 to 122°F); max 95% RH non-condensing

• Dimensions: 86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5 in)

• Weight: 64 g (2.3 oz)

Ideal Applications:

• Swimming Pools & Spas: Ensure proper alkalinity balance for water comfort and chemical stability.

• Freshwater Systems: Monitor alkalinity in ponds, fountains, and freshwater tanks.

• Home Water Testing: Easy-to-use solution for DIY water quality checks.

• Educational Use: Excellent for classroom experiments and training purposes.