Hanna Instruments Checker Saltwater Aquarium Phosphate Ultra Low Range Colorimeter HI774

The Hanna Phosphate Ultra Low Range (0.00 to 0.90 ppm) Checker®bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in colour. Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine ion concentration. Professional instrumentation offers greater resolution and accuracy but can cost hundreds of dollars. The Hanna Phosphate Ultra Low-Range Checker® uses a fixed wavelength LED and silicon photodetector to provide the accuracy of 

Compact, Portable Design

Built-in Timer

One-Button Operation

WHAT'S INCLUDED

HI774 Checker

2 sample cuvettes with caps

ULR Reagent for 10 tests

battery

instructions

quick start guide

1 year limited warranty