Reagent cases with reagentsVISOCOLOR Reagent case for soil analysis with PF‑3 Soil, with accessories


  • The VISOCOLOR Reagent case with PF‑3 Soil is the perfect tool for reliable and easy analysis of soil samples.
  • It combines all important measurements in one handy device.
  • The reagent case is equipped with all necessary accessories to prepare extracts from soil samples and reagents for Ammonium, Potassium, Nitrate, Phosphate and pH determinations.

REF 934220
Package unit 1 Piece(s)

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Parameter Ammonium, Nitrate, Nitrite, pH, Phosphate, Potassium
Parameter 1 pH – 2.0 • 2.5 • 3.0 • 3.5 • 4.0 • 4.5 • 5.0 • 5.5 • 6.0 • 6.5 • 7.0 • 7.5 • 8.0 • 8.5 • 9.0 / 0 / 100 tests / Refill REF 92118, pH-Fix 2.0–9.0
Parameter 2 Nitrate – 0 • 10 • 25 • 50 • 100 • 250 • 500  mg/L NO₃⁻ / 100 tests / Refill REF 91313, QUANTOFIX Nitrate/Nitrite
Parameter 3 Nitrite – 0 • 1 • 5 • 10 • 20 • 40 • 80  mg/L NO₂⁻ / 100 tests / Refill REF 91313, QUANTOFIX Nitrate/Nitrite
Parameter 4 Ammonium – 0.1–2.5 mg/L NH₄⁺ / 50 tests / Refill REF 931208, VISOCOLOR ECO Ammonium 3
Parameter 5 Potassium – 2–25 mg/L K⁺ / 60 tests / Refill REF 931232, VISOCOLOR ECO Potassium
Parameter 6 Nitrate – 4–60 mg/L NO₃⁻ / 110 tests / Refill REF 931241, VISOCOLOR ECO Nitrate
Parameter 7 Phosphate – 0.2–5.0 mg/L PO₄-P / 80 tests / Refill REF 931284, VISOCOLOR ECO Phosphate
Photometer included PF-3 Soil
Shelf life (from production) 1.5 Years
Storage temperature 15−25 °C
Scope of delivery Case, PF-3 Soil, test kits, accessories, manual, certificate
Hazardous material Yes

PF-3 – Compact photometer for mobile water analysis

The compact photometer PF‑3 is the smallest member of the MACHEREY‑NAGEL  photometer family. The device completes our product portfolio and perfectly fits our tradition of reliability, user friendliness and innovation. The instrument comes in multiple versions, equipped with three LEDs and interference filters, designed to meet the analysis requirements of specific applications. Together with the approved VISOCOLOR ECO test kits, brandnew VISOCOLOR Powder Pillows and high quality NANOCOLOR tube tests from MACHEREY‑NAGEL, the PF‑3 is perfectly suited for mobile analysis directly at the place of sampling. Optionally, the device comes in a practical case with pre-equipped test kits, in a cardboard box or in an empty case for the individual combination with our VISOCOLOR ECO test kits.


  • Intuitive operation with only four keys
  • Flat menu structure
  • Bright display for safe readings


  • Glass fiber reinforced housing for extreme durability
  • Water- and dustproof according to IP 68
  • Shock-resistant optics


  • Various case solutions including reagents
  • Additional parameters available f.o.c.
  • Compatible with VISOCOLOR ECO tests, VISOCOLOR Powder Pillows and NANOCOLOR tests

Small, strong, smart

The handy and compact design makes this lightweight the ideal companion for mobile analysis. Its simple operation allows measurements within seconds. Besides the measurement accuracy, simplicity and user friendliness are key features of all MACHEREY‑NAGEL devices. The interaction of context-sensitive icons and only four
buttons guarantees a smart, clear and language-independent operation.

Fast and reliable results

The centerpiece of the PF‑3 is its high-quality optic with the specially selected LEDs and corresponding interference filters. The unique “open slot” technology allows measurements without cuvette slot cover, thus emphasizing the high technical standard of the instrument. This yields into a simple and quick operation for the user, together with highly reliable results. MACHEREY‑NAGEL provides free PC software, for an even more comfortable operation. The software makes data management convenient, simple and efficient. Additionally it guarantees a forgery-proof data management.

Be prepared

The variable power supply is of particular convenience for the user and enables reliable measurements in all situations. Besides batteries and an accu-pack, the device can also be powered directly via an USB cable or a power adaptor.

Photometer PF-3

Additional information

Selling unit

1×10 mL, 6×50 mL, 5×10 mL, 20×1 mL, 1×100 mL, 6×100 mL, 12×100 mL