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  • Precision balances

    Precision balances in high quality

    offer you all the tools you would need for effective and accurate work in your laboratory environment. All important laboratory functions such as a recipe weighing function or data interfaces are on board at all times. But above all, the high-quality measuring principles of these balances such as force compensation or tuning fork measuring principle, allow them to be used in dosing procedures with very small weight changes and rapid display. In addition these balances are often fitted with automatic internal adjustment, which permits calibrated operation and means the balance can be used in any location.

    Standard and basic precision balances

    are used in laboratory applications mostly as single-user balances for sample preparation, etc. They are fitted with all useful laboratory functions which will support the user in a helpful way. With their strain gauge measuring principle, they are used anywhere where individual weighings are carried out, such as, for example, checkweighing. These devices are often connected to printers or local Pcs using the standard, integrated RS-232 data interface.

    Precision balances for education

    are entry-level devices in the field of laboratory balances, and they cover basic applications. They feature simple operation and the very best price/performance ratio. In addition they usually can be stacked and can also be operated by battery, as an alternative to mains power, which means that they have the flexibility to be used in different locations.

  • Analytical balances

    Analytical Balances Premium class

    are right at the top of the precision balance segment. The numerous equipment features of the standard balances are complemented by high-quality materials with robust, sturdy construction, high-quality, high-performance weighing systems, optimised operating sequences, speed benefits and in some cases, the most modern touchscreen technology. With its touchscreen technology a premium laboratory balance will support your users in their typical procedures. In this way these scales can be operated more efficiently and quickly than devices from other quality classes. In particular these balances are used in demanding laboratory applications and anywhere where the environmental conditions are not ideal because of vibrations or other interference, but where, naturally, the balance is expected to provide accurate weighing results. Another field of application for these balances is the pharmaceutical industry, which is subject to particularly demanding requirements and authorities such as, for example, the FDA (Food and Drug Administration).

  • Moisture analysers

    Feuchtebestimmer

    Moisture Analyzers – Precise Moisture Measurement for Laboratory & Industry

    Moisture analyzers are professional measuring instruments for the accurate determination of moisture content and dry matter in a wide range of materials. They are used wherever precise moisture measurement, consistent product quality, and reliable process control are essential – in laboratories, industrial environments, production, and quality control.

    Moisture determination is typically performed using the thermogravimetric measurement principle. During analysis, the sample is dried by an integrated heating system such as halogen or infrared, while the weight loss is continuously recorded. Based on this difference, the moisture analyzer calculates the moisture or dry content quickly, reliably, and reproducibly.

    Moisture analyzers for versatile applications

    Modern moisture analyzers are suitable for a wide range of samples, including:

    Powders, granules, and bulk materials

    Pastes, gels, and solids

    Food, feed, and agricultural products

    Plastics, construction materials, and chemical products

    Advantages of modern moisture analyzers

    Fast moisture measurement within minutes

    High accuracy and repeatability

    Programmable drying profiles for different materials

    Intuitive and user-friendly operation

    Compact design for laboratory and production use

    Ideal for incoming goods inspection, process monitoring, and final quality control

    Our range includes high-quality moisture analyzers for laboratory and industrial applications, designed to meet the highest standards of accuracy, reliability, and ease of use. With the right moisture analyzer, you can always rely on precise and traceable moisture analysis results.

  • Microscopes

    Microscopes for laboratory, industry and food

    For 175 years, KERN & SOHN has been synonymous with high precision weighing and measuring technology. This claim is the driving force for the development of our microscope and refractometer ranges.

    Thanks to consistent customer focus paired with smart ideas and the latest available technology we are proud to be suppliers of high-quality, durable top microscopes and refractometers, which help you to be as efficient as possible in your daily work. 

    When developing our microscopes we have concentrated on the very best optical quality and have used only high-quality glass and the latest technologies to achieve this. The high-quality Philips halogen and modern LED illumination produce razor-sharp images with high contrast and which will impress you with their brilliant true-colour display – you must have noticed this yourself.

    Your advantages:

    all mechanical parts have been designed for a long service life

    special attention has been given to the ergonomy of our microscopes,  as this allows the user to work for several hours in a comfortable position which does not cause fatigue

    our microscopes are fully-equipped and can be used immediately

    Highlight: die KERN camera software – you will be amazed at how user-friendly and intuitive it is, a high-quality tablet camera as well as a comprehensive range of calibration services for refractometers

    and much more…

  • Ioniser

    Ionisers to neutralise electrostatic charge in laboratory

    Weighing of non-conductive materials, work with powdery samples, use of plastic or porcelain tare vessels and low air humidity may cause weighing errors because of static electricity.

    The weighing errors arise through the electrostatic forces that act between the weighing sample and the surroundings. These electrostatic charges can be measured by micro, semi-micro and analytical balances and lead to weighing errors.

    The most effective method to neutralize static charges is ionization. Ionizing units produce both positive and negative ions that are attracted by the unbalanced material, resulting in neutralization.

    All you need to do is direct the air stream of the ionizer on all areas, which may be charged by the static electricity and in a couple of seconds static charges will be neutralized.

    Use of the ionizer will ensure accurate results and fast response time of the balance.

  • Accessories

    Precision balance accessories

  • Refractometer

    Refractometers from A.KRÜSS measure the refractive index of liquids, pastes and solids with high precision. In close cooperation with renowned partners from industry and research, we have developed refractometers that can be easily integrated into existing laboratory workflows.

Active filters

KERN KERN EWJ 300-3 Precision balance 1 mg

High-quality precision balance with automatic internal adjustment

Technical Data KERN EWJ 300-3

Weighing capacity [Max]300 g
Readability [d]1 mg
Unitskg, g, t, gn, dwt, ozt, tl, ct, mo, lb, oz, ffa, m
Linearity± 5 mg
Reproducibility3 mg
Stabilization time2 s
Tolerance weighing
InterfacesRS-232, USB-Device standard, optional, factory: Bluetooth BTC (v2.0), Bluetooth BLE (v4.0)
Adjustment optionsInternal calibration (automatic)
Recommended adjusting weight300 g (F1)
Ambient temperature10 °C – 35 °C
Dimensions weighing surface (Ø)80 mm
Material draught shieldplastic, glass
Material housingplastic
Dimension housing (W×D×H)220×340×90 mm
Material weighing platestainless steel
Net weight approx.2,2 kg
€522.00 Regular price €580.00
KERN KERN EMS 12K0.1 Precision balance 0,1g

Adjusting program (CAL): For quick setting of the balance's accuracy. External adjusting weight required..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..Weighing units: Can be switched to e.g. nonmetric units at the touch of a key. See balance model..Battery operation: The battery type is specified for each device..Universal mains adapter: with universal input and optional input socket adapters for EU, GB, 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

Entry level model in the low-cost range with large weighing plate

TECHNICAL DATA

Weighing capacity [Max]12000 g
Readability [d]0,1 g
Unitsg, dwt, ozt, oz
Linearity± 0,3 g
Reproducibility0,1 g
Stabilization time3 s
Adjustment optionsAdjusting with external weight
Recommended adjusting weight12 kg (F2)
Ambient temperature5 °C – 35 °C
Dimensions weighing surface (W×D)175×190 mm
Material housingplastic
Dimension housing (W×D×H)200×280×65 mm
Material weighing plateplastic
Net weight approx.1,6 kg
€211.50 Regular price €235.00
KERN KERN ORM 1RS digital refractometer for Brix value

Model
Scales
Measuring capacity
Accuracy
Division
ORM 1RS
Refractive index
Brix
1,3330 nD - 1,5177 nD
0,0 % - 90,0 %
0,0003 nD
0,2 %
0,0001 nD
0,1 %

The following models are particularly suitable for basic measurement where the result is required in Brix or refractive index. They are used to determine the sugar content in food or for monitoring processes in the industry (coolant monitoring, water-based mixtures). Alternatively the display can be switched to show Brix or the refractive index.

Main areas of application:

  • Industry: Process and quality control, lubricant control
  • Food processing industry: drinks, fruit, sweets
  • Agriculture: Determining the degree of ripeness of fruit for quality control during the harvest
  • Restaurants and industrial kitchens
€378.00 Regular price €420.00
KERN KERN PFB 200-3 Precision balance 1 mg

Quick-display precision balance with user-friendly concept of operation mode - now also with checkweighing function

Technical Data KERN PFB 200-3

Weighing capacity [Max]200 g
Readability [d]1 mg
Unitskg, g, t, gn, dwt, tl (Tw), tl (HK), ozt, tl (Singap, Malays), ct, mo, lb, oz, ffa, tol, m
Linearity± 4 mg
Reproducibility2 mg
Stabilization time2 s
Tolerance weighing
InterfacesRS-232 standard, Bluetooth BTC (v2.0) (optional, factory), Bluetooth BLE (v4.0) (optional, factory)
Adjustment optionsAdjusting with external weight
Recommended adjusting weight200 g (F1)
Ambient temperature15 °C – 30 °C
Dimensions weighing surface (Ø)80 mm
Material draught shieldglass
Material housingplastic
Dimension housing (W×D×H)210×315×90 mm
Material weighing platestainless steel
Net weight approx.1,2 kg
€351.00 Regular price €390.00
KERN KERN PCD 250-3 Precision balance 1 mg

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. 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. Weighing units: Can be switched to e.g. nonmetric units at the touch of a key. See balance model. Vibration-free weighing: (Animal weighing program) Vibrations are filtered out so that a stable weight is obtained. Battery operation: The battery type is specified for each device. Universal mains adapter: with universal input and optional input socket adapters for EU, GB, 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 2 years warranty

Laboratory balance with separate platform: Ideal when working in a glove bag or fume cupboard. Particularly practical for weighing toxic, volatile or contaminated substances

PRE-TARE function for manual subtraction of a known container weight, useful for checking fill-levels

Freely programmable weighing unit, e.g. display direct in special units such as length of thread g/m, paper weight g/m², or similar

Level indicator and levelling feet for precise levelling of the scale, fitted as standard, to give the most accurate weighing result

Protective working cover included with delivery

€315.00 Regular price €350.00
KERN KERN EW 420-3NM Precision balance 1 mg

The classic balance with robust tuning fork measuring system

Technical Data

Weighing capacity [Max]420 g
Readability [d]1 mg
Unitsg, gn, dwt, tl (Tw), tl (HK), ozt, tl (Singap, Malays), ct, lb, oz, to, mom
Linearity± 3 mg
Reproducibility1 mg
Stabilization time2 s
Tolerance weighing
Tolerance weighing - type of signalvisual
InterfacesRS-232 standard
Adjustment optionsAdjusting with external weight
Recommended adjusting weight200 g (E2); 200 g (E2)
Ambient temperature10 °C – 30 °C
Dimensions weighing surface (Ø)118 mm
Material draught shieldplastic
Material housingplastic
Dimension housing (W×D×H)180×235×75 mm
Material weighing platestainless steel
Net weight approx.1,4 kg
€882.00 Regular price €980.00
KERN Moisture analyzer KERN DLB 60-4A

Moisture analyzer with intuitive graphic display and moisture measurement up to 0,001%

Technical Data

Weighing capacity [Max]60 g
Readability [d]0,1 mg
Weighing systemForce compensation
Sample – Moisture content0,01% - 100%
Sample – Dry content100% - 0,01%
Temperature range (in steps up to)35 °C - 160 °C (1 °C)
Stabilization time4 s
Unitsg, mg, % rH, % Dry mass
Reproducibility0,1 mg
Linearity± 0,6 mg
Readability moisture [d] (%)0,001%
Drying modesStandard drying, Rapid drying
Switch-off criteriatime controlled, automatic, manual
€1,710.00 Regular price €1,900.00
KERN Moisture analyzer KERN DIS 50-4

High-precision moisture analyzer for demanding analyses, particularly suitable for plastic granulate

Technical Data

Weighing capacity [Max]50 g
Readability [d]0,1 mg
Weighing systemForce compensation
Sample – Moisture content0,001% - 100%
Sample – Dry content100% - 0,001%
Temperature range (in steps up to)30 °C - 175 °C (1 °C)
Stabilization time4 s
Unitsg, % Humidity, % Dry mass, % ATRO
Reproducibility0,0001 g
Linearity± 0,0003 g
Readability moisture [d] (%)0,0001%
Drying modesStandard drying, Rapid drying, Gentle drying, Drying in levels
Switch-off criteriatime controlled, automatic, manual
Input voltage device / power [Max]230 V AC, 50 Hz
€1,890.00 Regular price €2,100.00
KERN KERN ADS 200-4 Analytical balance 0,1 mg

Analytical balance with flexible functionality and touch display

Weighing capacity [Max]220 g
Readability [d]0,1 mg
Unitsg, mg, gn, dwt, tl (Tw), ozt, ct, lb, oz, ffa
Linearity± 0,3 mg
Reproducibility0,3 mg
Stabilization time3 s
Tolerance weighing
InterfacesRS-232 standard, USB-Device
Adjustment optionsAdjusting with external weight
Recommended adjusting weight200 g (E2)
Ambient temperature15 °C – 25 °C
Dimensions weighing surface (Ø)90 mm
Material draught shieldglass
Material housingABS plastic
Material weighing platestainless steel
Net weight approx.6 kg
€1,575.00 Regular price €1,750.00