Mettler Toledo – pH/Cond meter SevenDirect SD23 (30671553)


Manufactured by Mettler Toledo

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

Large colour touch screen provides direct measurement and easy data entry. Instructions guide users through the sensor calibration process.

The instrument stores data, such as timestamp, sample and sensor ID with every measurement and prints or exports records automatically.

Closed connector compartment and replaceable cover keep the instrument safe from dust and spills, even with sensors attached (IP54 in-use).

Optional Extras

EasyDirect™ pH software license key
Lab equip acc data writer RS-P25/00
Paper roll (5 units)

Product Specifications

Parameter Conductivity;
Channel Dual-channel
Version kit Meter only
pH resolution 0.1;
pH accuracy (±) 0.002
Conductivity measuring range 0.001 μs/cm – 2000 ms/cm
Conductivity resolution 0.001 – 1.000
Conductivity accuracy (±) 0.5 %
mV resolution 1;
mV accuracy (±) 0.1
Temperature range -30 °C ;
130 °C
Temperature resolution 0.1 °C
Temperature accuracy (±) ±0.1°C between 0°C and 100°C
Ease of Use Touch screen;
Calibration support;
Guided Verification;
Simple Methods;
Multilingual menu
Security and compliance GLP;
User management
Memory size 2000 standard measurements
Data Transfer PC;
USB stick
Flexibility and modularity Stirrer;
Barcode reader
Protection Rating Watertight and dustproof (IP54)
Compatible with Intelligent sensor management (ISM) Yes
Connectors BNC;
Mini-DIN (conductivity);
USB A (x2);
Mini-DIN (for stirrer)
Dimensions 195 x 205 x 65 mm
Display Type 7″ Colour TFT
Meter Type Benchtop Dual-Channel
mV measuring range -2000..2000 mV
Portable Meter No
Sensor Included None
Weight 850 g


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