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Mettler Toledo™ pH/Conductivity Meter SevenDirect SD23

The SevenDirect SD23 is an accurate and flexible benchtop meter for the determination of pH and conductivity - either separately or simultaneously. The instrument is the replacement of the SevenCompact and is delivered with an EasyPlace sensor arm.

$2676.50 - $3699.40


Accuracy (Conductivity) 0.5 %
Accuracy (mV) 0.1 mV
Accuracy (pH) 0.002
Data Management Details PC, Printer, USB Stick
Channels Dual-channel
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Products 3
Catalog Number Mfr. No. Description Price Quantity & Availability  
Catalog Number Mfr. No. Description Price Quantity & Availability  
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Mettler Toledo™
SevenDirect SD23, Meter Only
Each for $2,676.50
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Mettler Toledo™
SevenDirect SD23 Kit
Each for $3,365.50
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Mettler Toledo™
SevenDirect SD23 Pure H2O
Each for $3,699.40
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SevenDirect instruments are benchtop meters developed for a wide range of laboratory applications, which provide accurate measurements of pH, ORP and conductivity of almost any sample. The SevenDirect is the successor of the SevenCompact and a great addition to any lab.

  • Large color touchscreen provides direct measurement and easy data entry.
  • Instructions guide users through the sensor calibration process.
  • View detailed measurement information on one measurement screen - or focus on the result only and maximize readability with the uFocus mode.
  • Closed connector compartment and replaceable cover keep the instrument safe from dust and spills, even with sensors attached (IP54 in-use).
  • The instrument stores data like timestamp, sample and sensor ID with every measurement and prints or exports records automatically.
  • A two-level user management protects the most important settings.
  • The EasyPlace electrode arm makes placing the sensor in the sample or buffer container easy.
  • Dedicated positions for cleaning and storage support correct sensor handling.


0.5 %
-2000 to 2000 mV
-30°C to +130°C
1, 0.1 mV
±0.1°C between 0°C and 100°C
1.9 lb.
0.1 mV
PC, Printer, USB Stick
Color TFT
0.001 μS/cm to 2000 mS/cm
0.1, 0.01, 0.001
2000 Standard Measurements
1, 0.1
-22°F to +266°F
195 x 205 x 65 mm
850 g


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