Hanna HI 755 Checker HC Colorimeter - Marine Alkalinity - 0 to 300 ppm

The Hanna Checker HC is a handheld colorimeter that delivers the accuracy and resolution of a professional-grade instrument, with the simplicity and affordability of a basic chemical test kit. This pocket-sized tester will save you hundreds of dollars in hi-tech equipment, while eliminating the need for complicated calibrations and maintenance.

This particular model quickly and accurately measures Alkalinity (0 to 300 ppm) in marine and reef aquariums to help you maintain optimal conditions for your precious inhabitants. It features user-friendly single button operation, and displays its precise readings on a large and easy-to-read LCD.

Weighing in at only 64 g (2.25 oz), the Hanna Checker HC is an ultra-portable water tester. This compact unit features an ergonomic design that fits perfectly in your pocket or the palm of your hand. It includes the single AAA battery required for operation, as well as an automatic shut-off function that triggers after 10 minutes of inactivity to preserve battery life.

The HI 755 Marine Alkalinity Checker HC comes complete with hard-shell travel case, sample cuvettes with caps (2), alkalinity reagent starter kit for 25 tests (1 bottle of alkalinity reagent), 1 ml syringe and tip, AAA battery (1), instructions, and quick start guide.

Specifications:

Range: 0 to 300 ppm
Resolution: 1 ppm
Accuracy @ 25°C: ±5 ppm ±5% of reading
Light Source: Photodiode @ 610 nm
Light Detector: Silicon photocell
Environment: 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Auto-off: After 10 minutes of inactivity
Method: Colorimetric Method