HI-707 Nitrite Low Range Handheld Colorimeter - Checker®HC


HI-707 Nitrite Low Range Handheld Colorimeter - Checker®HC


Key features

  • Small palm-sized design
  • Accurate from ±20 ppb ± 5% of reading
  • Dedicated to a single parameter
  • Uses a single AAA battery
  • Auto Power Off after 10 minutes inactivity
  • Built-in timer for timed reaction readings

Supplied with

  • 2 cuvettes and caps
  • Reagent starter kit (6 packets of nitrite LR reagent) - re-ordering information: HI-707-25
  • 1 x 1.5V AAA battery
  • Instruction manual


Range 0 to 600 ppb NO2-N
Resolution 1 ppb
Accuracy @ 25°C ±20 ppb ±5% of reading
Light source LED @ 470 nm
Light Detector Silicon photocell
Method Adaptation of the EPA Diazotisation method 354.1
Environment 0 to 50°C; RH max 95% non-condensing
Battery Type (1) 1.5V AAA
Auto-off After ten minutes of non-use
Dimensions 81.5mm x 61mm x 37.5mm
Weight 64g
Ordering Information HI-707 Checker® is supplied with (2) sample cuvettes with caps, nitrite LR reagent starter kit for 6 tests (6 powder reagent packets), battery, instructions and quick start guide.

A Range Of Varieties

We breed a number of varieties of Koi each year and use our many years of experience to select the very best.

Hundreds Of Awards

We breed the finest Koi (Nishikigoi) in the UK and have won hundreds of awards for their owners over the years.

Online Or In-Person

You can buy the Koi we breed direct from us by visiting our farm in Oxfordshire, or you can order online.
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