Refractometers for engine coolants, antifreezes and screenwashes

• battery electrolyte condition
• freezing point of ethanol-based windscreen washer fluids
• freezing point of isopropanol-based windscreen washer fluids
• freezing point of ethylene glycol-based antifreezes and coolants
• freezing point of propylene glycol-based antifreezes and coolants, heating systems, solar thermal collector circuits, heat pumps
• liquid additive AdBlue^®

This refractometer is equipped with automatic temperature compensation.

• Propylene glycol: 0 to -51 °C (1 °C)
• Ethylene glycol: 0 to -59 °C (1 °C)
• Ethanol: 0 to -46 °C (1 °C)
• Glycerol (glycerine, glycerin): 0 to -43 °C (1 °C)
• Urea (Ad Blue^®/DEF): 0 to 50 % (0.1 %)

• freezing point of propylene glycol-based aqueous solution (-50 °C to 0 °C)
• content of propylene glycol in aqueous solution (0 to 70 %)
• freezing point of ethylene glycol-based aqueous solution (-50 °C to 0 °C)
• content of ethylene glycol in aqueous solution (0 to 70 %)

This refractometer is equipped with automatic temperature compensation.

The optical refractometer liquid additive AdBlue (32.5 percentage by weight aqueous urea solution developed for automotive industry according to ISO 22241/DIN 70070/AUS32) used to treat exhaust gases to the level of emission standards Euro 4 and Euro 5.
The value 32.5 percentage by weight is highlighted on a scale by an extended line.

This refractometer is equipped with automatic temperature compensation.

• freezing point of propylene glycol-based aqueous solution (-60 °C - 0 °C)
• freezing point of ethylene glycol-based aqueous solution (-70 °C - 0 °C)
• battery electrolyte fluid condition (1.10 - 1.40 kg/l)

This refractometer is equipped with automatic temperature compensation.

Durable plastic case suitable for most of our optical refractometers with length is less than 175 mm (the gap the foam has this length).

Not suitable for models: RAL1, RAL2, RBR10, RUR5 and RSA1. These models are longer and have another case.

If you do not want to buy the case as a spare part it is not necessary to order it - it is a standard part of each our optical refractometer.

Spare part Pipette for the sample collection is intended for collection of liquids which want to test by using a refractometer.

It may be an appropriate tool for modellers, chemists, etc.

It is a standard part of each our optical refractometer.

Spare part Transparent cover plate for optical refractometer prism is suitable for all optical refractometers in our catalogue.

It is a standard part of each our optical refractometer.

Spare part Transparent cover plate for optical refractometer prism with illumination is suitable for all optical refractometers in our catalogue.

Under the sun icon is located a microswitch for the illumination control.

It is not necessary to use the illumination during each measuring. Use it just in dark rooms, basement and so on. Under normal lighting has this cover plate similar optical properties like the standard transparent cover plate without the illumination.

Spare part Microfibre optical cloth (for refractometer prism) is of course suitable also for cleaning of glasses and other optical devices.

It is a standard part of each our optical refractometer.

Quality antistatic cloth to clean the refractometer prism is of course suitable also for cleaning of glasses and other optical devices.