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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 PCD 10K0.1 Precision balance 0,1g

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

€261.00 Regular price €290.00
KERN KERN EMB 3000-1 Precision balance 0,1g

Entry level laboratory balance with tremendous weighing performance

Technical Data

Weighing capacity [Max]3000 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 weight3 kg (M1)
Ambient temperature5 °C – 35 °C
Dimensions weighing surface (Ø)150 mm
Material housingplastic
Dimension housing (W×D×H)170×245×39 mm
Material weighing plateplastic
Net weight approx.0,55 kg
€117.00 Regular price €130.00
KERN KERN ALJ 500-4A Analytical balance 0,1 mg

Analytical balance with high weighing capacity, graphic display and convenient recipe function

Technical Data

Weighing capacity [Max]510 g
Weighing capacity [Max] (ct)2550 ct
Readability [d]0,1 mg
Readability carat [d] (ct)0,001 ct
Unitsg, mg, gn, dwt, tl (Tw), tl (HK), ozt, tl (Singap, Malays), ct, mo, lb, oz
Linearity± 0,4 mg
Reproducibility0,2 mg
Stabilization time4 s
Tolerance weighing
Tolerance weighing - type of signalacoustically, visual
InterfacesRS-232
Adjustment optionsInternal calibration (automatic)
Ambient temperature5 °C – 35 °C
Dimensions weighing surface (Ø)80 mm
Material draught shieldglass
Material housingplastic
Dimension housing (W×D×H)210×340×330 mm
Material weighing platestainless steel
Net weight approx.7 kg
€1,953.00 Regular price €2,170.00
Precisa Precisa EM 120-HR Moisture analyzer

  • Capacity: 124 g
  • Readability: 0.1 mg / 0.001%
  • Repeatability: 1 g / 0.1 %   10 g / 0.01 %
  • Linearity: 0,2 mg
  • Temperature Range: 50 - 230°C
  • Pan Size (mm): ø 100
  • Response Time: 4 sek

The EM 120-HR instrument for fast and accurate moisture analysis with a wide range of methods; sophisticated and simple to operate, complying to the most  stringent standards. 

  • Adjustable readability: 0.1 mg / 0.001 % and  1 mg / 0.01 %
  • High temperature range up to 230ºC
  • Automatic self calibration system (SCS)
  • Bright graphic Display
  • Extended memory capacity, 100 Methods
  • Choice of heat element: halogen, infrared,  infrared dark Radiator
  • USB and RS232 interfaces as Standard
  • Selectable heating modes: standard, boost, smooth

Swiss made Backlit graphic LCD Self-Calibration-System Easy alphanumeric input RS232 interface for PC / printer Communication options USB device Support IQ/OQ/PQ Anti-theft protection Clock (printout GLP/GMP, auto-cal, etc.)

Check weighing Statistics Automatic repeatability test

€4,585.00
KERN KERN PEJ 4200-2M Precision balance with internal adjustment

Robust laboratory and industrial precision scale for heavy items, verification optional

Automatic internal adjustment, guarantees high degree of accuracy and makes the balance independent of its location of use

Metal housing: robust and sturdy

Weighing with tolerance range (checkweighing): Input of two upper and two lower limit values through four arrow keys. An audible and visual signal assists with the portioning, dispensing or grading

Underfloor weighing: load support with hook on the underside of the balance for models

Protective working cover included with delivery

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: 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. Weighing with tolerance range: Upper and lower limiting can be programmed individually, e. g. sorting and portioning. Suspended weighing: load support with hook on the underside of the balance. Mains adapter: 230V/50Hz in standard version for Germany. On request GB or USA version. Tuning fork principle: A resonating body (like a tuning fork) is electromagnetically excited, causing it to oscillate. The measured value is calculated via the change in frequency correspon EC type approval: Verification class: II, with certificate

€1,395.00 Regular price €1,550.00
KERN KERN EG 420-3NM Precision balance 1 mg

Precision balance with robust tuning fork measuring system

Internal adjustment in the case of a change in temperature and time-controlled at defined intervals, guarantees high degree of accuracy and makes the balance independent of its location of use

Stable temperature behaviour

Short stabilisation time

Shock proof construction

High corner load performance

Capacity display: A bargraph display lights up to show how much of the weighing range is still available

Totalising of pieces when counting

Draught shield standard, weighing space W×D×H 158×130×78 mm

Protective working cover included with delivery

€1,044.00 Regular price €1,160.00
KERN KERN PCB 10000-1 Laboratory Balance 0,1g

CAL adjusting programUniversal Port (KUP)Function_KCPGLP/ISO printerPiece countingRecipe level APercentage determinationWeighing unitsWeighing with tolerance range, visual, acousticFunction_Mean value_AnimalSuspended weighingBattery operationUniversal mains adapter_BWeighing principle: Strain gauges

OPTION

Easy TouchRS 232 data interfaceUSB data interfaceBluetooth data interfaceWLAN data interfaceNetwork interfaceRechargeable battery packCertificate_DAkkS_3_days

The standard in the laboratory, ideal for a wide range of applications for Industry 4.0

TECHNICAL DATA

Weighing capacity [Max]10 kg
Readability [d]0,1g
Linearity± 0,3g
Reproducibility0,1g
Stabilization time3 s
InterfacesRS-232 (optional), Bluetooth (optional), Ethernet (optional), USB-Device (optional), KUP, WiFi (optional)
Adjustment optionsAdjusting with external weight
Recommended adjusting weight10 kg (F1)
Ambient temperature-10 °C – 40 °C
Dimensions weighing surface 150 x 170 mm
Unitskg g gn dwt tl ozt ct mo lb oz ffa m
Material housingplastic
Dimension housing (W×D×H)163×245×65 mm
Material weighing platestainless steel
Net weight approx.1,6 kg
€270.00 Regular price €300.00
KERN KERN ORM 1CO Refractometer coffee

Model
Scales
Measuring
range
Accuracy
Division
ORM 1CO
Refractive index
Brix
Coffee TDS 1
1,3330 nD - 1,4200 nD
0,0 % - 50,0 %
0,0 - 25,0
0,0003 nD
0,2 %
0,2
0,0001 nD
0,1 %
0,1

The following models are particularly suitable for measuring the dissolved solids (TDS) in coffee to determine or compare the strength of a cup of coffee. For roasting plants, the TDS% value is used to determine the solubility level of a roast and to control the quality. Alternatively the display can be switched to show Brix or the refractive index. Alternatively the display can be switched to show Brix or the refractive index.

Main areas of application:

  • Coffee industry
  • Coffee roasting plants
  • Coffee competitions
€333.00 Regular price €370.00
KERN KERN 440-53N Precision balance 1g

The classic balance in the laboratory

Technical Data

Weighing capacity [Max]6000 g
Readability [d]1 g
Unitsg, dwt, tl (Tw), tl (HK), ozt, mo, lb, oz, ffa, tol
Linearity± 2 g
Reproducibility1 g
Stabilization time2 s
InterfacesRS-232 standard
Adjustment optionsAdjusting with external weight
Recommended adjusting weight5 kg (M2)
Ambient temperature5 °C – 35 °C
Dimensions weighing surface (W×D)150×170 mm
Material housingplastic
Dimension housing (W×D×H)165×230×80 mm
Material weighing platestainless steel
Net weight approx.1,2 kg
€207.00 Regular price €230.00
KERN KERN PCD 10K-3 precision balance with removable display

High-resolution precision balance with removable display for maximum flexibility

Technical Data

Weighing capacity [Max]10000 g
Readability [d]1 g
Unitsg, dwt, tl (Tw), tl (HK), ozt, mo, lb, oz, ffa, tol
Linearity± 3 g
Reproducibility1 g
Stabilization time3 s
InterfacesRS-232 standard
Adjustment optionsAdjusting with external weight
Recommended adjusting weight10 kg (M1)
Ambient temperature5 °C – 35 °C
Dimensions weighing surface (W×D)160×160 mm
Display device cable length1,2 m
Material housingplastic
Dimension housing (W×D×H)165×280×75 mm
Material weighing platestainless steel
Net weight approx.1,8 kg
€189.00 Regular price €210.00
KERN KERN EG 2200-2NM Precision balance 0,01g

Precision balance with robust tuning fork measuring system

Internal adjustment in the case of a change in temperature and time-controlled at defined intervals, guarantees high degree of accuracy and makes the balance independent of its location of use

Stable temperature behaviour

Short stabilisation time

Shock proof construction

High corner load performance

Capacity display: A bargraph display lights up to show how much of the weighing range is still available

Totalising of pieces when counting

Protective working cover included with delivery

€999.00 Regular price €1,110.00