Hanna Marine Phosphate Ultra Low Range Checker (HI-774)

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 photo detector to provide the accuracy of professional instrumentation at the affordable price of a chemical test kit.

• Compact, Portable Design
• Built-in Timer
• One-Button Operation

The HI-774 Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including coral reef tanks. Phosphate is an important parameter to measure in aquaculture and aquariums; levels that are too high can lead to extensive algae growth, depleted dissolved oxygen levels, and ultimately can be fatal to many types of fish and aquatic life. Designed as a more accurate alternative to chemical test kits, the HI-774 provides quick, accurate results.

For those that would like measure phosphate as phosphorous we offer the HI-736 Phosphorous Checker HC. Alternatively, to determine the fraction of phosphorous (PO4-P) there is in phosphate (PO43-) the phosphate reading is multiplied by 0.3261. A 0.50 ppm phosphate reading is equal to 0.163 ppm or 163 ppb phosphorous.

Pre-mixed Chemistry

Reagents are pre-measured packets that are added to the sample to take a reading.

Colorimetric Readings

Using an LED at a specific wavelength and silicon photo detector the HI-774 can perform a precise reading of the colour change in the sample based on the phosphate concentration.

Checker HC Calibration Standards

The HI-774-11 CAL-Check standards can be purchased separately and are used to check the performance of the meter to ensure confidence that the meter is working properly.

Automatic Shut-off

The meter is programmed to turn off after seven minutes of non-use or two minutes after taking a reading.

Long Battery Life

The phosphate ULR Checker has an exceptional battery life with a fresh battery lasting for a minimum of 5000 measurements.

Plastic Carrying Case

The HI-774 is supplied complete with meter and reagents for 10 tests that are packaged in a durable plastic carrying case.

Economical

Laboratory grade measurements at a cost of a chemical test kit.