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HI-733

The HI-733 Checker is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water.

Checker®HC is supplied with reagents for 10 tests. Use code HI-733-25 for future purchases.

0.0 to 99.9 ppm
Ideal for freshwater aquariums
Ammonia

£83.20 (exc.VAT)
£99.84 (tax incl.)
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Ideal for fresh water aquarium

The HI-733 Checker is a simple, accurate, and cost effective way to measure high ranges of ammonia in fresh water.

Designed as a more accurate alternative to chemical test kits, the HI-733 provides quick, accurate results in four easy steps.

The HI-733 uses an adaptation of the ASTM Manual of water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.

Please download the Safety Datasheet(s) which provide more detail on the reagents before use; click on the link in the “safety data sheets” paragraph below.

Ideal for:

  • Water Quality
  • Education
  • Wastewater
  • Freshwater Aquariums
  • Environmental

Features

  • Palm-sized design
  • ±1.0ppm ±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

Order Information:

The HI-733 Checker®HC is supplied with 2 cuvettes and caps, ammonia HR reagent starter kit x 10 tests (reorder no.: HI-733-25 x 20 tests), syringe with tip, plastic pipette, 1 x1.5V AAA battery, instruction manual and quick start guide.

Not included: Calibration set HI-733-11.

Four steps. One click. Instant Readout.

Step 1  1. ‘Zero’ the Checker®HC with your vial inside

Step 2  2. Place a 10ml water sample into the vial and add your reagent

Step 3  3. Place your vial into your Checker®HC

Step 4  4. Press the button and read the results

Use reagents HI-733-25 with the HI-733 Ammonia High Range Colorimeter Checker®HC, x 25 tests.

Use Calibration Check Set HI-733-11 with the HI-733 Ammonia High Range Colorimeter Checker®HC.

Safety Data Sheets

Access safety data sheets online here. When using any form of chemical, it is important you download the relevant safety datasheet and make yourself aware of any precautions you should take when handling the chemical. You can access our library of safety datasheets and download a copy by following the link below.

Please note that the '-' in HI- products should be removed from all searches to find the correct information.

click here

Read More

Range0.0 to 99.9 ppm as NH4+
Resolution0.1 ppm
Accuracy (@20°C/68°F)±1.0ppm ±5% of reading
Measurement MethodColorimetric
Light SourceLED @470 nm
Light DetectorSilicon photocell
MethodAdaptation of the ASTM Manual of water and Environmental Technology D1426-92, Nessler Method. The reaction between ammonia and reagents causes a yellow tint in the sample.
Power SupplyBattery - 1 x 1.5V AAA
Power Auto OffAfter 10 min. of inactivity
Environment0 to 50°C (32 to 122°F); RH max 95% non-condensing
Dimensions81.5 x 61 x 37.5 mm (3.2 x 2.4 x 1.5”)
Weight64 g (2.25 oz.)
Ordering information:Supplied with sample cuvettes with caps (2), Ammonia HR reagent starter kit (reagents for 10 tests), syringe with tip, plastic pipette, battery, instructions and quick start guide.
PLEASE NOTE:In some cases, samples may contain other parameters which may interfere with results
 Interference may be caused by:Acetone
Alcohols
Aldehydes
Glycine
Hardness above 1 g/L
Iron
Organic chloramines
Sulphide
Various aliphatic and aromatic amines