Stratos Eco

4-wire devices for analog sensors


Stratos Eco is our series of high-tech analyzers available at reasonable prices.

Backed by a 3-year warranty, the 4-wire devices for the measurement of pH values, ORP, conductivity or oxygen are highly reliable even in the long run.

  • Powerful basic version including calibration timer and Sensocheck function
  • Self-explaining user interface for intuitive handling
  • VariPower 20 to 253 V AC/DC broad-range power supply
  • Ex classification Class I Div. 2

These powerful basic versions now provide superior Knick technology for standard applications in a wide range of industrial and infrastructural sectors – from water treatment to seawater desalination to fish farming.

Uncompromisingly good
From the calibration timer to the GainCheck automated device self-test, from the red alarm LED to the Sensocheck sensor monitoring system.

Easy to operate
The self-explanatory user interface guarantees comfortable and intuitive handling. The measurement values and temperature are displayed simultaneously on the large, high-contrast LCD. Measurement values in plain text. Internationally understood pictograms provide operating information and indicate unusual operating states. Status indicators provide information on the current operating mode. The very flat and fully encapsulated electronics are integrated in the front of the housing. This provides lots or room for cabling inside the device, and all parts are readily accessible.

Suitable for operation around the world
Just one version with integrated VariPower broad-range power supply for all common supply voltages (20…253 V AC/DC) allows for proper operation even with large fluctuations in the power grid.

The circuit technology – which other manufacturers have so far been unable to attain – results in a low electronic component count and reduced energy consumption. All of these advantages result in an MTBF value of 110 years – and last but not least the exceptionally long warranty period of 3 years. Thus Stratos Eco stands for outstanding availability and exceptional reliability.

Easy to install
Like the other Stratos series, the Eco series also offers wall, pipe, and panel mounting options. Installation is simplified through plug terminals and the empty plastic housing which is made from tough PBT and can be pre-assembled. Cable conduits: M 20 x 1.5 and NPT 1/2″ or Rigid Metallic Conduit.




Catalog Excerpts

Catalog Excerpt - Stratos Eco

Catalog Excerpt (en)

3433 |  Stratos Eco 2405
Product Description | Specifications | Product Range
PDF (file size: 5.83 MB)


Brochure - Stratos Eco

Brochure (en)

16199 |  Stratos Eco - The Price Advantage
PDF (file size: 2.9 MB)


Manual - Stratos Eco

Manual (en)

3450 |  Stratos Eco 2405 Cond
Software version: 2.x
PDF (file size: 2.05 MB)
Manual - Stratos Eco

Manual (en)

3451 |  Stratos Eco 2405 pH
Software version 2.x
PDF (file size: 2.44 MB)
Manual - Stratos Eco

Manual (en)

3452 |  Stratos Eco 2405 Oxy
Software version: 2.x
PDF (file size: 2.18 MB)

Certificates / Approvals

EU Declaration of Conformity - Stratos Eco

EU Declaration of Conformity (en)

12928 |  Stratos Pro Type A201N-… + A401B-… | Stratos Eco 2405 | Stratos Evo DP A451N
Document No. EU220125A | 2022-01-25
PDF (file size: 1.8 MB)
EU Declaration of Conformity - Stratos Eco

EU Declaration of Conformity (en)

13124 |  Stratos Eco 2405 pH, Cond, Condl, Oxy
Document No. EU160511A | 2016-05-11
PDF (file size: 1.68 MB)
Certificate of Compliance (FM) - Stratos Eco

Certificate of Compliance (FM) (en)

4895 |  Stratos Eco
Certificate of Compliance, No. 3014429 | 2008-06-23
PDF (file size: 0.79 MB)