Laboratory equipment for quality and quantity control (3)

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Microscopes
Professional Microscopes for laboratory, industry and food
$Refractometer$
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.
Centrifuges
Centrifuges for Laboratories and Medical Practices
Discover our high-quality centrifuges for laboratories and medical practices, ensuring reliable results in sample preparation. Whether for blood collection, urine analysis, or specialised laboratory examinations – we offer a wide range of benchtop centrifuges, microhematocrit centrifuges, and universal centrifuges from leading brands. Our models are characterised by easy operation, low noise levels, and precise separation results. With various rotors and adapters, they are highly versatile and perfectly suited to the needs of medical practices, laboratories, and research facilities. Find the right centrifuge for your daily routine work now and benefit from quality, safety, and excellent value for money.
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

There are 102 products.

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KERN & SOHN GmbH Precision balance EWJ 600-2M

High-quality precision balance with automatic internal adjustment, verification optional

TECHNICAL DATA

Weighing capacity [Max]	600 g
Readability [d]	0,01 g
Verification scale interval [e]	0,1 g
Conformity assessment possible ex works
Minimum weight [Min]	0,5 g
Linearity	± 0,03 g
Reproducibility	0,01 g
Stabilization time	3 s
Interfaces	RS-232 standard, USB-Device
Adjustment options	Internal calibration (automatic)
Recommended adjusting weight	600 g (F1)
Ambient temperature	15 °C – 30 °C
Dimensions weighing surface (Ø)	120 mm
Material draught shield	plastic, glass
Material housing	plastic
Dimension housing (W×D×H)	220×340×90 mm
Material weighing plate	stainless steel
Net weight approx.	3,2 kg
Construction type of the scale	Single-range balance

€450.00 €500.00

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KERN & SOHN GmbH USB interface adapter KERN KUP-03

Interface adapter with cable. Interface with USB-Device KUP, cable length 1,5 m

TECHNICAL DATA

Product family	KUP
Dimension (W×D×H)	10×10×10 mm
Interfaces	USB-Device, KUP
Cable length	1,5 m
Net weight approx.	0,30 kg

€67.50 €75.00

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KERN & SOHN GmbH Precision balance EWJ 6000-1M

High-quality precision balance with automatic internal adjustment, verification optional

TECHNICAL DATA

Weighing capacity [Max]	6000 g
Readability [d]	0,1 g
Verification scale interval [e]	1 g
Conformity assessment possible ex works
Minimum weight [Min]	5 g
Linearity	± 0,3 g
Reproducibility	0,1 g
Stabilization time	3 s
Interfaces	RS-232 standard, USB-Device
Adjustment options	Internal calibration (automatic)
Recommended adjusting weight	6 kg (F1)
Ambient temperature	15 °C – 30 °C
Dimensions weighing surface (W×D)	155×145 mm
Material housing	plastic
Dimension housing (W×D×H)	215×340×105 mm
Material weighing plate	stainless steel
Net weight approx.	3,4 kg
Construction type of the scale	Single-range balance

€432.00 €480.00

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KERN & SOHN GmbH RS-232 interface adapter KERN KUP-01

Interface adapter with cable. Interface with RS-232 standard KUP, cable length 1,5 m

TECHNICAL DATA

Product family	KUP
Dimension (W×D×H)	10×10×10 mm
Interfaces	RS-232 standard, KUP
Cable length	1,5 m
Net weight approx.	0,30 kg

€54.00 €60.00

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KERN & SOHN GmbH Precision balance EWJ 300-3

High-quality precision balance with automatic internal adjustment

TECHNICAL DATA

Weighing capacity [Max]	300 g
Readability [d]	0,001 g
Linearity	± 0,005 g
Reproducibility	0,002 g
Stabilization time	3 s
Interfaces	RS-232 standard, USB-Device
Adjustment options	Internal calibration (automatic)
Recommended adjusting weight	300 g (F1)
Ambient temperature	15 °C – 35 °C
Dimensions weighing surface (Ø)	80 mm
Material draught shield	plastic, glass
Material housing	plastic
Dimension housing (W×D×H)	220×340×90 mm
Material weighing plate	stainless steel
Net weight approx.	2,6 kg
Construction type of the scale	Single-range balance

€522.00 €580.00

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KERN & SOHN GmbH Extension box KERN KUP-13

Extension box KERN KUP-13 to connect to multiple devices

TECHNICAL DATA

Product family	KUP
Dimension (W×D×H)	10×10×10 mm
Interfaces	KUP
Cable length	0,15 m
Net weight approx.	0,30 kg

€65.70 €73.00

KERN & SOHN GmbH Precision balance KERN EWJ 3000-2

High-quality precision balance with automatic internal adjustment

TECHNICAL DATA

Weighing capacity [Max]	3000 g
Readability [d]	0,01 g
Linearity	± 0,05 g
Reproducibility	0,02 g
Stabilization time	3 s
Interfaces	RS-232 standard, USB-Device
Adjustment options	Internal calibration (automatic)
Ambient temperature	15 °C – 35 °C
Dimensions weighing surface (Ø)	135 mm
Material housing	plastic
Dimension housing (W×D×H)	220×340×105 mm
Material weighing plate	stainless steel
Net weight approx.	3,0 kg
Construction type of the scale	Single-range balance

€550.00

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KERN & SOHN GmbH Bluetooth interface adapter KERN KUP-06

Interface adapter with cable. Interface with Bluetooth BLE (v4.0) KUP, cable length 0,15 m

TECHNICAL DATA

Product family	KUP
Dimension (W×D×H)	10×10×10 mm
Interfaces	Bluetooth BLE (v4.0), KUP
Cable length	0,15 m
Net weight approx.	0,30 kg

€88.20 €98.00

KERN & SOHN GmbH Inverse microscope KERN OCM 161

The inverted biological laboratory microscope

€3,790.00

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KERN & SOHN GmbH WiFi interface adapter KERN KUP-05

WiFi data interface to transfer data from balances to PC or tablet

TECHNICAL DATA

Product family	KUP
Dimension (W×D×H)	10×10×10 mm
Interfaces	WiFi standard, KUP
Cable length	0,15 m
Net weight approx.	0,10 kg

€65.70 €73.00

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KERN & SOHN GmbH Inverse microscope KERN OCM 165

The inverted biological laboratory microscope - with fluorescence

€8,262.00 €9,180.00

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KERN & SOHN GmbH Analogue module interface adapter KERN KUP-08

Interface adapter with cable. Interface with analogue (4 - 20 mA) KUP, cable length 0,15 m

TECHNICAL DATA

Product family	KUP
Dimension (W×D×H)	10×10×10 mm
Interfaces	analogue (4 - 20 mA), KUP
Cable length	0,15 m
Net weight approx.	0,30 kg

€153.00 €170.00

Compound microscope KERN OBL 137 LED Trinocular

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KERN & SOHN GmbH Compound microscope KERN OBL 137 LED Trinocular

The flexible laboratory assistant with infinity optical system and fixed, pre-centred Koehler illumination

€1,080.00 €1,200.00

Compound microscope KERN OBL 127 Binocular

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KERN & SOHN GmbH Compound microscope KERN OBL 127 LED Binocular

The flexible laboratory assistant with infinity optical system and fixed, pre-centred Koehler illumination

€954.00 €1,060.00

KERN & SOHN GmbH Metallurgical inverted microscope KERN OLM 171

The inverted metallurgical microscope for professional applications

€4,200.00

KERN & SOHN GmbH Polarising microscope KERN OPO 185

The flexible and powerful polarising microscope for all professional applications with reflected and transmitted light

€5,740.00

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KERN & SOHN GmbH Analytical balance KERN ADB 100-4

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

TECHNICAL DATA

Weighing capacity [Max]	120 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	220 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

€693.00 €770.00

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KERN & SOHN GmbH Analytical balance KERN ADJ 200-4

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

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	Internal calibration (automatic)
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.	5 kg
Construction type of the scale	Single-range balance

€891.00 €990.00

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KERN & SOHN GmbH Analytical balance KERN ADJ 100-4

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

TECHNICAL DATA

Weighing capacity [Max]	120 g
Readability [d]	0,1 mg
Linearity	± 0,4 mg
Reproducibility	0,2 mg
Stabilization time	4 s
USP Minimum weight of sample (k = 2, U = 0.1%)	400 mg
Interfaces	RS-232 standard
Adjustment options	Internal calibration (automatic)
Recommended adjusting weight	120 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.	5 kg
Construction type of the scale	Single-range balance

€792.00 €880.00

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KERN & SOHN GmbH KERN DAB 200-2 Moisture analyser 0,01 g

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

TECHNICAL DATA

Weighing capacity [Max]	200 g
Readability [d]	0,01 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	0,01 g
Linearity	± 0,03 g
Readability moisture [d] (%)	0,05%
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

€1,080.00 €1,200.00

KERN & SOHN GmbH KERN DBS 60-3 Moisture analyser

TECHNICAL DATA

Weighing capacity [Max]	60 g
Readability [d]	0,001 g
Weighing system	Single-Cell
Temperature [Min] (°C)	50 °C
Temperature [Max] (°C)	200 °C
Stabilization time	3 s
Units	g, % Humidity, % Dry mass, % ATRO
Reproducibility	0,001 g
Linearity	± 0,003 g
Readability moisture [d] (%)	0,01%
Drying modes	Standard drying, Rapid drying, Gentle drying, Drying in levels
Switch-off criteria	time controlled, automatic, manual
Product group	Moisture analyser

€1,650.00

KERN & SOHN GmbH KERN DLB 160-3A Moisture analyser 1 mg

TECHNICAL DATA

Weighing capacity [Max]	160 g
Readability [d]	0,001 g
Weighing system	Strain gauge
Temperature [Min] (°C)	35 °C
Temperature [Max] (°C)	160 °C
Stabilization time	4 s
Units	g, mg, % rH, % Dry mass
Reproducibility	0,001 g
Linearity	± 0,003 g
Readability moisture [d] (%)	0,01%
Drying modes	Standard drying, Rapid drying
Switch-off criteria	time controlled, automatic, manual
Input Voltage	110V or 240V, 50-60 Hz
Product group	Moisture analyser

€1,655.00

$Digital handheld refractometer KRÜSS DR301-95$

KRÜSS Digital handheld refractometer KRÜSS DR301-95

The KRÜSS DR301-95 is both a high-quality mobile handheld device and a simple digital desktop device. In addition to the refractive index and sugar content, it can also measure the salt content (%) (NaCl). On request, the DR301-95 can be manufactured with any two other scales. Via the menu control it is possible to switch on the automatic temperature compensation for each scale – with measurement reference to sucrose. An alarm option can be set up for monitoring limit values in production processes. The supplied Mains adaptor turns the DR301-95 into a small laboratory refractometer. In mobile use, it is operated with a 9 V block battery. The DR301-95 is used in the food and beverage industry, in pharmacies, laboratories

Measurement range: nD 1.3330-1.5318 and 0-95%Brix
High measurement accuracy: nD ±0.00015 and ±0.1 %Brix
Can also be used to determine the salt content (%)
Reproducible measurement results
Optional automatic activation temperature compensation for all scales
Swift filling and cleaning
With high-quality, fully chrome-plated measurement tray
Robust housing and low device weight
Operation Mains adaptor or battery

€930.00

$Digital handheld refractometer KRÜSS DR201-95$

KRÜSS Digital handheld refractometer KRÜSS DR201-95

The DR201-95 is a compact, mobile and splash-proof digital handheld refractometer. It is used to measure the refractive index (nD) and the sugar content in % (%Brix) of liquid and viscous samples. Thanks to the automatic temperature compensation for the BRIX scale, a reproducible measurement can be achieved even under changing ambient conditions. The automatic temperature compensation for the BRIX scale supports the user when measuring sugary drinks and confectionery. The device is splash-proof and meets the IP64 standard. The DR201-95 is used in the food and beverage industry, in pharmacies, laboratories and testing laboratories as well as in research and teaching.

Measurement range: nD 1.3330-1.5318 and 0-95%Brix
Mobile automatic measurement at the touch of a button
High measurement accuracy: nD ±0.0003 and ±0.2 %Brix
Reproducible measurement results that are not dependent on the user’s interpretation.
Automatic temperature compensation (BRIX scale)
Swift filling and cleaning
With high-quality, fully chrome-plated measurement tray
Robust housing and low device weight

€399.00

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