The following models have a particularly large measuring range for the refraction index and large divided scales for measuring Brix values. 

Main areas of application: 

Universal field of application, primarily for applications which require an extra large measuring range

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

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

KRÜSS DR101-60 is a compact, mobile and splash-proof digital handheld refractometer. Thanks to the automatic temperature compensation for the BRIX scale, a reproducible measurement can be achieved even under changing ambient conditions. As a waterproof device, the DR101-60 meets the IP65 standard and can be cleaned under running water. The DR101-60 is used in the food and beverage industry, in pharmacies, laboratories and testing laboratories as well as in research and teaching.

• Measurement range: nD 1.3330-1.4419 and 0-60%Brix
• Mobile automatic measurement at the touch of a button
• 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

The KRÜSS AR4 is a classic Abbe refractometer. The scales can be set manually using the drive knob and the refractive index and Brix values are read off using an eyepiece. The temperature is measured with the integrated digital thermometer and displayed on the LCD. The AR4 refractometer can be connected to a circulation thermostat for temperature control. This device can be used in a wide range of applications: for identity checking, purity control and concentration determination of raw materials, semi-finished products and end products or for determining the sugar concentration as well as for incoming and outgoing goods inspection.

• Measurement of liquid and viscous samples, regardless of their viscosity
• Measurement of films possible and of solid samples that have at least one smooth side
• Wide measurement range from nD 1.3000-1.7200 and 0-95 %Brix
• Reading the measured values via an eyepiece
• Integrated thermometer
• Hose connections for temperature control with a circulation thermostat
• Robust housing and easy handling
• Temperature display on LED display

KRÜSS AR2008 is an Abbe refractometer in which the sample is placed between a measuring and illumination prism. The device can measure the refractive index or Brix value and display the measured value together with the temperature on the LCD display. Using the serial interface, the measured values, date and time can be transferred directly to a PC or printed. These devices can be used in a wide range of applications: e.g. in the chemical, petrochemical, oil and grease industries, the food industry, in the pharmaceutical environment and in research & education.

• Measurement of liquid and viscous samples, regardless of their viscosity
• Measurement of films possible and of solid samples that have at least one smooth side
• Wide measurement range from nD 1.3000-1.7200 and 0-95 %Brix
• Digital representation of the measurement data
• Integrated thermometer
• Hose connections for temperature control with a circulation thermostat
• Automatic temperature compensation for the BRIX scale can be switched on as an option
• Robust housing and easy handling
• Serial interfaces RS-232, RS-422

KRÜSS DR6000-TF:

Measurement range: nD 1.3200-1.5800 ; 0-95 %Brix

Measurement accuracy: nD ±0.0001; ±0.1 %Brix

Resolution: nD 0.0001; 0.1 %Brix

• Measurement of turbid or highly viscous samples
• With highly accurate internal Peltier temperature control
• Preinstalled and freely definable scales with conversions based on tables or formulas
• Chemical-resistant materials such as measurement prism made of sapphire, measuring tray made of stainless steel
• Intuitive operation via touch-screen display
• Complete data recording and backup including audit trail
• Flexible data export
• Compliance with global standards and norms

Refractive index measurement with high efficiency in a fully automatic measurement process, with Peltier-temperature control

KRÜSS DR6100-TF:

Measurement range: nD 1.3200-1.7000; 0-95 %Brix

Measurement accuracy: nD ±0.0001; ±0.1 %Brix

Resolution: nD 0.0001 ; 0.1 %Brix

• Measurement of turbid or highly viscous samples
• With highly accurate internal Peltier temperature control
• Preinstalled and freely definable scales with conversions based on tables or formulas
• Chemical-resistant materials such as measurement prism made of sapphire, measuring tray made of stainless steel
• Intuitive operation via touch-screen display
• Complete data recording and backup including audit trail
• Flexible data export
• Compliance with global standards and norms

Refractive index measurement with high efficiency in a fully automatic measurement process, with Peltier-temperature control

KRÜSS DR6200-TF:

Measurement range: nD 1.32000-1.58000; 0-95 %Brix

Measurement accuracy: nD ±0.00002; ±0.02 %Brix

Resolution: nD 0.00001; 0.01 %Brix

• Measurement of turbid or highly viscous samples
• With highly accurate internal Peltier temperature control
• Preinstalled and freely definable scales with conversions based on tables or formulas
• Chemical-resistant materials such as measurement prism made of sapphire, measuring tray made of stainless steel
• Intuitive operation via touch-screen display
• Complete data recording and backup including audit trail
• Flexible data export
• Compliance with global standards and norms

Refractive index measurement with high efficiency in a fully automatic measurement process, with Peltier-temperature Control

KRÜSS DR6300-TF:

Measurement range: nD 1.32000-1.70000; 0-95 %Brix

Measurement accuracy: nD ±0.00002 ; 0.02 %Brix

Resolution: nD 0.00001; 0.01 %Brix

• Measurement of turbid or highly viscous samples
• With highly accurate internal Peltier temperature control
• Preinstalled and freely definable scales with conversions based on tables or formulas
• Chemical-resistant materials such as measurement prism made of sapphire, measuring tray made of stainless steel
• Intuitive operation via touch-screen display
• Complete data recording and backup including audit trail
• Flexible data export
• Compliance with global standards and norms

Area of application: Honey

The following models are particularly suitable for measuring the Brix value, the water content in honey and the Baumé degree (°Bé) to determine the relative density of liquids You can also choose to display the refraction index.

Main areas of application:

• Beekeeping
• Honey production

Abbe refractometer KRÜSS AR4

• Measurement of liquid and viscous samples, regardless of their viscosity
• Measurement of films possible and of solid samples that have at least one smooth side
• Wide measurement range from nD 1.3000-1.7200 and 0-95 %Brix
• Reading the measured values via an eyepiece
• Integrated thermometer
• Hose connections for temperature control with a circulation thermostat
• Robust housing and easy handling
• Temperature display on LCD display

Circulation thermostat KRÜSS PT31

• Temperature control using Peltier technology
• Temperature range from 8°C to 35 °C
• Temperature accuracy of ±0.2 °C
• Space-saving, sturdy design
• Suitable for operation with non-flammable liquids (water or water/glycol mixture)
• Bright, easy-to-read LCD matrix display
• Sophisticated, easily accessible operating elements
• Simple and plainly structured functions

KRÜSS AR2008 digital Abbe refractometer

• Measurement of liquid and viscous samples, regardless of their viscosity
• Measurement of films possible and of solid samples that have at least one smooth side
• Wide measurement range from nD 1.3000-1.7200 and 0-95 %Brix
• Digital representation of the measurement data
• Integrated thermometer
• Hose connections for temperature control with a circulation thermostat
• Automatic temperature compensation for the BRIX scale can be switched on as an option
• Robust housing and easy handling
• Serial interfaces RS-232, RS-422

Circulation thermostat KRÜSS PT31

• Temperature control using Peltier technology
• Temperature range from 8°C to 35 °C
• Temperature accuracy of ±0.2 °C
• Space-saving, sturdy design
• Suitable for operation with non-flammable liquids (water or water/glycol mixture)
• Bright, easy-to-read LCD matrix display
• Sophisticated, easily accessible operating elements
• Simple and plainly structured functions