Hanna Instruments

Scientific Equipment

Coronavirus Update

Coronavirus update, statement & FAQs

Free Delivery

Most of mainland GB for orders over £50. Other charges may apply - see more

Hanna Care

We take the long view, looking after existing customers as much as delighting new ones!

One Click Purchase

No need to type in credit card or address details, pay in seconds on PayPal

HI-775 Freshwater Alkalinity Colorimeter - Checker®HC

HI-775 Freshwater Alkalinity Colorimeter - Checker®HC

HANNA HI-775 Alkalinity Checker for Drinking Water

HI-775 Freshwater Alkalinity Colorimeter - Checker®HC

0 to 500 ppm
Ideal for freshwater aquariums
In Stock
£63.65 (exc. VAT) £76.38 (inc. VAT)

Ideal for fresh water aquariums (not suitable for salt water marine tanks).

The HI-775 Alkalinity Checker for fresh water is a simple, accurate and cost effective way to measure alkalinity in fresh water.

Checker®HC is supplied with reagents for 25 tests. Use code HI-775-26 for future purchases.

HI-775 Freshwater Alkalinity Colorimeter - Checker®HC information

Hanna's extended description

Designed as a more accurate alternative to chemical test kits, it is easy to use with single button operation and a large LCD display. This mini tester also features auto shut-off to ensure a longer battery life.

The HI-775 is ideal for checking water quality, great for educational and environmental applications and for use in freshwater aquaria.

Designed as a more accurate alternative to chemical test kits, the HI-775 provides quick, accurate results in four easy steps. (See below).

The HI-775 uses a colorimetric method. The reaction causes a distinctive range of colours from yellow to blue to develop. This meter has been developed to work with fresh water samples.

Please note: Any chlorine present in the sample will interfere with the reading. To remove the chlorine interference add one drop of HI-93755-53 Chlorine Remover to the unreacted sample prior to testing.


Features:

  • Small palm-sized design
  • Accurate from ±5ppm ± 5% of reading
  • Dedicated to a single parameter
  • Uses a single AAA battery
  • Auto Power Off after 10 minutes in inactivity
  • Built-in timer for timed reaction readings

Ideal for:

  • Water Quality
  • Education
  • Freshwater Aquarium
  • Environmental

Order Information:

The HI-775 Checker®HC is supplied with 2 cuvettes and caps, alkalinity reagent kit for 25 tests (HI-775-26), 1 x1.5V AAA battery, and an instruction manual.

Also available: HI-775-11 Calibration set.

Four steps. One click. Instant Readout.

1. ‘Zero’ the Checker®HC with your vial & 10ml water sample inside




2. Take the vial out and add your reagent




3. Place your vial into your Checker®HC




4. Press the button and read the results



Battery powered – Allows use away from a power source. Batteries are included with all battery operated products.



Use HI-775-26 Reagents with HI-775 Freshwater Alkalinity Colorimeter - Checker®HC - 25 tests.



Use HI-775-11 Calibration Check Sets with HI-775 Freshwater Alkalinity Colorimeter - Checker®HC.

Specifications

Specifications list

Specifications

Range 0 to 500 ppm
Resolution 1 ppm
Accuracy (@25°C/77°F) ±5 ppm ± 5% of reading
Measurement Method Colorimetric
Light Source LED @ 610 nm
Light Detector Silicon photocell
Method Colorimetric method. The reaction causes a distinctive range of colours from yellow to green to blue to develop. This meter has been developed to work with fresh water samples.
Power Supply Battery - 1 x 1.5V AAA
Power Auto Off After 10 min. of inactivity
Environment 0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions 81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight 64 g (2.25 oz.)
Ordering information: Supplied with sample cuvettes with caps (2), alkalinity reagent starter kit (reagents for 25 tests), syringe with tip, battery, instructions and quick start guide.

Questions & Answers

Got a question to ask? Use this form to submit your question.
Question will be displayed after moderation.
Name* Product Question*
No questions yet?
Don 't be shy, be the first to ask.