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  • Master Catalogue 2025

Laboratory

To examine a patient's blood and excretions, you need the right equipment for your laboratory. In addition to laboratory equipment such as a microscope or a centrifuge, laboratory accessories are also required for daily work.

Subcategories

  • Microscopes

    Professional Microscopes for laboratory, industry and food

  • Refractometer

    Refractometers measure the refractive index of liquids, pastes and solids with high precision. In close cooperation with well-known partners from industry and research, we have developed refractometers that can be easily integrated into existing processes in the laboratory.

  • Circulating thermostats

    A.KRÜSS offers two thermoelectric circulation thermostats with integrated Peltier technology for external temperature control. The temperature is generated by means of a current flow through semiconductors. So can be done by simply reversing the direction of flow in a small space both heating and cooling. The A.KRÜSS circulating thermostats fulfill all standard tasks and routine work in laboratories and industry. They are specially designed for sample temperature control, analysis tasks and for the temperature control of our high-quality laboratory equipment such as polarimeters and refractometers.

  • Precision balances

    Precision balances

  • Analytical balances

    Analytical balances are high-precision laboratory balances and are used in scientific and industrial laboratories of various industries to determine the mass of solid, bulk and liquid substances with an accuracy of 0.1 mg. Semi-microbalances are even more accurate - their readout resolution is 0.01 mg. Laboratory analytical balances according to OIML have a special accuracy class I. An important characteristic of any balance is the weighing range, the weighing range value for analytical balances from 50 g to 500 g.

    The operation of modern electronic analytical balances is based on the principle of electromagnetic compensation. According to this principle, the weight of the load is compensated by an electromagnetic force directed opposite to the weight. The compensating force is determined by the strength of the current flowing in the magnetic coil. The electrical signal from the sensor is converted into digital, corresponding to the measured mass, and displayed on the display.

    The analytical balance platform is located inside a transparent display case, which serves to eliminate the accumulation of dust and the influence of air currents on the measurement accuracy. The calibration of this precision instrument can be external, internal or automatic. Electronic analytical balances are equipped with a large number of additional functions:

    • selection of a unit of measure of mass (some models have up to 24 units of mass)
    • tare function (zeroing the tare weight in the entire weighing range)
    • dynamic weighing (weighing animals or non-static objects)
    • percentage weighing (making measurements percentage of components)
    • prescription weighing (weighing a multicomponent mixture)
    • hydrostatic weighing (determining the density of substances)
    • the ability to connect to a PC, etc.
  • Moisture analysers

    Moisture analysers

Active filters

KERN & SOHN GmbH Stereo microscope sets KERN OSE 409

Predefined stereo microscope sets with universal stand and illumination for your functional workplace

Technical data OSE 409:

  • Tube: Binocular (WF 10×/∅ 20 mm)
  • Objektive Zoom: 1x (WD: 230 mm)
  • Stand: Swivel arm with block pedestal
  • Holder: With coarse focusing knob, Adjustable torque of the hand wheels
  • Illumination: 3W LED goose neck (integrated)
€396.00 Regular price €440.00
KERN & SOHN GmbH Analytical balance KERN ADB 200-4

Optimised price performance ratio, ideal for laboratories, universities, schools

Adjusting program (CAL): For quick setting of the balance's accuracy. External adjusting weight required. Data interface RS-232: To connect the balance to a printer, PC or network GLP/ISO log: with weight, date and time. Only with KERN printers, see Accessories Piece counting: Reference quantities selectable. Display can be switched from piece to weight. Percentage determination: Displays the deviation from the reference weight (100%) in % instead of grams. Weighing units: Can be switched to e.g. nonmetric units at the touch of a key. See balance model. Universal mains adapter: with universal input and optional input socket adapters for EU, GB Electromagnetic force compensation: A counterforce is created by means of a coil in a permanent magnet. This counterforce is the same as the load of the weight being measured on the scale and therefore maintains the balance. The measured value is calculated via the change in the coil current. 3 years warranty

TECHNICAL DATA

Weighing capacity [Max] 220 g
Readability [d] 0,1 mg
Linearity ± 0,4 mg
Reproducibility 0,2 mg
Stabilization time 3 s
USP Minimum weight of sample (k = 2, U = 0.1%) 400 mg
Interfaces RS-232 standard
Adjustment options Adjusting with external weight
Recommended adjusting weight 200 g (E2)
Ambient temperature 10 °C – 30 °C
Dimensions weighing surface (Ø) 90 mm
Material draught shield glass
Material housing plastic
Dimension housing (W×D×H) 230×310×330 mm
Material weighing plate stainless steel
Net weight approx. 4,4 kg
Construction type of the scale Single-range balance
€765.00 Regular price €850.00
KERN & SOHN GmbH Analytical balance KERN ABT 220-4NM

Internal adjusting (CAL): Quick setting of the balance's accuracy with internal adjusting weight (motordriven). Data interface RS-232: To connect the balance to a printer, PC or network GLP/ISO log: the balance displays the weight, date and time, regardless of printer connected Piece counting: Reference quantities selectable. Display can be switched from piece to weight. Recipe level A: Separate memory for the weight of the tare container and the recipe ingredients (net total). Percentage determination: Displays the deviation from the reference weight (100%) in % instead of grams. Suspended weighing: load support with hook on the underside of the balance. Weighing units: Can be switched to e.g. nonmetric units at the touch of a key. See balance model. Universal mains adapter: with universal input and optional input socket adapters for EU, GB, USA Single cell technology: Advanced version of the classic electromagnetic force compensation principle. The load cells are milled from a single aluminium block achieving high mechanical strength, fast response characteristics and greater measurement stability, e.g. temperature behaviour and high reproducibility. 3 years warranty

TECHNICAL DATA

Weighing capacity [Max] 220 g
Readability [d] 0,1 mg
Verification scale interval [e] 1 mg
Conformity assessment possible ex works
Minimum weight [Min] 10 mg
Linearity ± 0,2 mg
Reproducibility 0,1 mg
Stabilization time 4 s
USP Minimum weight of sample (k = 2, U = 0.1%) 200 mg
Interfaces RS-232 standard
Adjustment options Adjusting with external weight, Internal calibration (automatic), Adjusting with internal weight (manual)
Ambient temperature 10 °C – 30 °C
Dimensions weighing surface (Ø) 80 mm
Material draught shield glass
Material housing metal
Dimension housing (W×D×H) 217×345×330 mm
Material weighing plate stainless steel
Net weight approx. 8 kg
Construction type of the scale Single-range balance
€2,300.00
KERN & SOHN GmbH Analytical balance KERN ABT 320-4NM

Internal adjusting (CAL): Quick setting of the balance's accuracy with internal adjusting weight (motordriven). Data interface RS-232: To connect the balance to a printer, PC or network GLP/ISO log: the balance displays the weight, date and time, regardless of printer connected Piece counting: Reference quantities selectable. Display can be switched from piece to weight. Recipe level A: Separate memory for the weight of the tare container and the recipe ingredients (net total). Percentage determination: Displays the deviation from the reference weight (100%) in % instead of grams. Suspended weighing: load support with hook on the underside of the balance. Weighing units: Can be switched to e.g. nonmetric units at the touch of a key. See balance model. Universal mains adapter: with universal input and optional input socket adapters for EU, GB, USA Single cell technology: Advanced version of the classic electromagnetic force compensation principle. The load cells are milled from a single aluminium block achieving high mechanical strength, fast response characteristics and greater measurement stability, e.g. temperature behaviour and high reproducibility. 3 years warranty

TECHNICAL DATA

Weighing capacity [Max] 320 g
Readability [d] 0,1 mg
Verification scale interval [e] 1 mg
Conformity assessment possible ex works
Minimum weight [Min] 10 mg
Linearity ± 0,2 mg
Reproducibility 0,1 mg
Stabilization time 4 s
USP Minimum weight of sample (k = 2, U = 0.1%) 200 mg
Interfaces RS-232 standard
Adjustment options Adjusting with external weight, Internal calibration (automatic), Adjusting with internal weight (manual)
Ambient temperature 10 °C – 30 °C
Dimensions weighing surface (Ø) 80 mm
Material draught shield glass
Material housing metal
Dimension housing (W×D×H) 217×345×330 mm
Material weighing plate stainless steel
Net weight approx. 8 kg
Construction type of the scale Single-range balance
€2,340.00 Regular price €2,600.00
KERN & SOHN GmbH Analytical balance KERN ABT 100-5NM

The premium model with single-cell weighing system

Internal adjusting (CAL): Quick setting of the balance's accuracy with internal adjusting weight (motordriven). Data interface RS-232: To connect the balance to a printer, PC or network GLP/ISO log: the balance displays the weight, date and time, regardless of printer connected Piece counting: Reference quantities selectable. Display can be switched from piece to weight. Recipe level A: Separate memory for the weight of the tare container and the recipe ingredients (net total). Percentage determination: Displays the deviation from the reference weight (100%) in % instead of grams. Suspended weighing: load support with hook on the underside of the balance. Weighing units: Can be switched to e.g. nonmetric units at the touch of a key. See balance model. Universal mains adapter: with universal input and optional input socket adapters for EU, GB, USASingle cell technology: Advanced version of the classic electromagnetic force compensation principle. The load cells are milled from a single aluminium block achieving high mechanical strength, fast response characteristics and greater measurement stability, e.g. temperature behaviour and high reproducibility. 3 years warranty

TECHNICAL DATA

Weighing capacity [Max] 101 g
Readability [d] 0,01 mg
Verification scale interval [e] 1 mg
Conformity assessment possible ex works
Minimum weight [Min] 1 mg
Linearity ± 0,15 mg
Reproducibility 0,05 mg
Stabilization time 10 s
USP Minimum weight of sample (k = 2, U = 0.1%) 100 mg
Interfaces RS-232 standard
Adjustment options Adjusting with external weight, Internal calibration (automatic), Adjusting with internal weight (manual)
Ambient temperature 10 °C – 30 °C
Dimensions weighing surface (Ø) 80 mm
Material draught shield glass
Material housing metal
Dimension housing (W×D×H) 217×356×338 mm
Material weighing plate stainless steel
Net weight approx. 8 kg
Construction type of the scale Single-range balance
€2,250.00 Regular price €2,500.00
KERN & SOHN GmbH KERN DAB 100-3 Moisture analyser 1 mg

Moisture analyser with user-friendly graphics display and 15 memories for drying programs

Adjusting program (CAL): For quick setting of the balance's accuracy. External adjusting weight required. Memory: Balance contains memories, e.g. for  tare weights, weighing data, item data,  PLU etc. Data interface RS-232: To connect the balance to a printer, PC or network GLP/ISO log: with weight, date and time. Only with KERN printers, see Accessories Weighing units: Can be switched to e.g. nonmetric units at the touch of a key. See balance model. Mains part: mains part integrated in the balance. 230V/50Hz Standard type D, if requested also available in standard GB, AUS or USA. Strain gauge: An electrical resistor strip that is glued to an elastic deforming body made of aluminium. As the strain gauge is mechanically deformed its resistance value changes, allowing the measured value to be calculated. 3 years warranty

TECHNICAL DATA

Weighing capacity [Max] 110 g
Readability [d] 0,001 g
Weighing system Strain gauge
Temperature [Min] (°C) 40 °C
Temperature [Max] (°C) 199 °C
Stabilization time 3 s
Units g, % Humidity, % Dry mass
Reproducibility 0,001 g
Linearity ± 0,003 g
Readability moisture [d] (%) 0,01%
Drying modes Standard drying, Rapid drying, Gentle drying
Switch-off criteria time controlled, automatic, manual
Input voltage device / power [Max] 230 V AC, 50 Hz
Product group Moisture analyser
€1,125.00 Regular price €1,250.00