MISCO Digital Handheld Refractometer

Refractometer for Antifreeze and Heat Transfer Fluids

Simplify Antifreeze and Heat Transfer Fluid Concentration Monitoring and Control.

No one has to tell you the importance of optimizing the properties of an antifreeze or heat transfer fluid to obtain the best performance. Too much concentration and you waste costly fluid; too little and things can freeze before you expect. A refractometer is the most accurate method for field testing the concentration or freezing point of antifreeze and heat transfer fluids: measure ethylene glycol, propylene glycol, glycerine, and more. We have a scale for the unit of measure you need.

Pre-Configured Refractometers

For easy ordering, here are a few units programmed with some of the most popular scale combinations for this application. If you require different programming, you can mix and match scales through the Flexible Custom Programming section below, or call customer service for assistance:

Flexible Custom Programming Options

MISCO Palm Abbe Digital Refractometers can be custom-programmed with up to 5 scales to your exact specifications. There are two easy online options to create your customized units from hundreds of measurement scales:

“Build Your Own” Tool

  1. Use the Industry, Application and Fluid filters to quickly find your scales.
  2. Click scale boxes to add scales to your device.
  3. Select Accessories
  4. Add To Cart

Order Refractometer by Scale#

  1. Browse the refractometer scale options in the dropdown tabs below and record the scale numbers you want.
  2. Type in your scale numbers on the Order by Scale# page.
  3. Select Accessories
  4. Add To Cart

Ethylene Glycol % v/v

Scale# 011
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Ethylene Glycol % w/w

Scale# 012
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Ethylene Glycol (D20/20)

Scale# 015
UoM: Specific Gravity (D 20/20)
Range: 1.0000 to 1.1153
Resolution: 0.0001
Precision: 0.0001

Ethylene Glycol (g/cm3)

Scale# 379
UoM: Density (g/cm3)
Range: 0.998 to 1.113
Resolution: 0.0001
Precision: 0.0002

Ethylene Glycol Boil °C

Scale# 381
UoM: Boiling Point °C
Range: 100 to 152
Resolution: 1
Precision: 1

Ethylene Glycol Boil °F

Scale# 380
UoM: Boiling Point °F
Range: 212 to 305
Resolution: 1
Precision: 1

Ethylene Glycol Freeze °C

Scale# 014
UoM: Freeze Point ºC
Range: 0 to -59
Resolution: 1
Precision: 1

Ethylene Glycol Freeze °F

Scale# 013
UoM: Freeze Point °F
Range: +32 to -79
Resolution: 1
Precision: 2

PG Freeze °C (GEN)

Scale# 909
UoM: Freeze Point °C
Range: 0 to -51
Resolution: 1
Precision: 1

PG Freeze °F (GEN)

Scale# 908
UoM: Freeze Point °F
Range: 32 to -60
Resolution: 1
Precision: 2

Propylene Glycol % v/v

Scale# 006
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol % w/w

Scale# 007
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol % w/w (GEN)

Scale# 907
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol (D20/20)

Scale# 010
UoM: Specific Gravity (D20/20)
Range: 1.0000 - 1.0460
Resolution: 0.0001
Precision: 0.0001

Propylene Glycol Freeze °C

Scale# 009
UoM: Freeze Point ºC
Range: 0 to -51
Resolution: 1
Precision: 1

Propylene Glycol Freeze °F

Scale# 008
UoM: Freeze Point °F
Range: +32 to -60
Resolution: 1
Precision: 2

DowFrost (PG) % v/v

Scale# 239
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost (PG) % w/w

Scale# 238
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost (PG) (D25/25)

Scale# 409
UoM: Specific Gravity (D25/25)
Range: 1.000 to 1.054
Resolution: 0.001
Precision: 0.001

DowFrost (PG) Freeze ºC

Scale# 240
UoM: Freeze Point ºC
Range: 0 to -67
Resolution: 1
Precision: 1

DowFrost (PG) Freeze ºF

Scale# 241
UoM: Freeze Point ºF
Range: +32 to -88
Resolution: 1
Precision: 2

DowFrost HD (PG) % v/v

Scale# 247
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost HD (PG) % w/w

Scale# 246
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost HD (PG) Freeze ºC

Scale# 248
UoM: Freeze Point ºC
Range: 0 to -51
Resolution: 1
Precision: 1

DowFrost HD (PG) Freeze ºF

Scale# 249
UoM: Freeze Point ºF
Range: +32 to -60
Resolution: 1
Precision: 1

PG Freeze °C (GEN)

Scale# 909
UoM: Freeze Point °C
Range: 0 to -51
Resolution: 1
Precision: 1

PG Freeze °F (GEN)

Scale# 908
UoM: Freeze Point °F
Range: 32 to -60
Resolution: 1
Precision: 2

Propylene Glycol % v/v

Scale# 006
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol % w/w

Scale# 007
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol % w/w (GEN)

Scale# 907
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol (D20/20)

Scale# 010
UoM: Specific Gravity (D20/20)
Range: 1.0000 - 1.0460
Resolution: 0.0001
Precision: 0.0001

Propylene Glycol (H2O %v/v)

Scale# 445
UoM: % water v/v
Range: 100 to 0
Resolution: 1
Precision: .1

Propylene Glycol Freeze °C

Scale# 009
UoM: Freeze Point ºC
Range: 0 to -51
Resolution: 1
Precision: 1

Propylene Glycol Freeze °F

Scale# 008
UoM: Freeze Point °F
Range: +32 to -60
Resolution: 1
Precision: 2

Glycerine % v/v

Scale# 016
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Glycerine % w/w

Scale# 017
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Glycerine (D20/20)

Scale# 020
UoM: Specific Gravity (D 20/20)
Range: 1.000 to 1.2633
Resolution: 0.0001
Precision: 0.0002

Glycerine Freeze °C

Scale# 019
UoM: Freeze Point °C
Range: 0 to -43
Resolution: 1
Precision: 1

Glycerine Freeze °F

Scale# 018
UoM: Freeze Point °F
Range: +32 to -46
Resolution: 1
Precision: 1

DEG Boil 760 mm Hg

Scale# 588
UoM: Boiling Point 760 mm Hg
Range: 100 to 180
Resolution: 1
Precision: 2

Diethylene Glycol % v/v

Scale# 045
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Diethylene Glycol % w/w

Scale# 046
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Diethylene Glycol (D60/60 °F)

Scale# 049
UoM: Specific Gravity (D60/60)
Range: 1.0000 to 1.1184
Resolution: 0.0001
Precision: 0.0001

Diethylene Glycol (H20 % w/w)

Scale# 591
UoM: % Water w/w
Range: 100 to 0
Resolution: 0.1
Precision: .1

Diethylene Glycol Freeze °C

Scale# 048
UoM: Freeze Point °C
Range: 0 to -45
Resolution: 1
Precision: 1

Diethylene Glycol Freeze °F

Scale# 047
UoM: Freeze Point °F
Range: +32 to -49
Resolution: 1
Precision: 2

DowFrost (PG) % v/v

Scale# 239
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost (PG) % w/w

Scale# 238
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost (PG) (D25/25)

Scale# 409
UoM: Specific Gravity (D25/25)
Range: 1.000 to 1.054
Resolution: 0.001
Precision: 0.001

DowFrost (PG) Freeze ºC

Scale# 240
UoM: Freeze Point ºC
Range: 0 to -67
Resolution: 1
Precision: 1

DowFrost (PG) Freeze ºF

Scale# 241
UoM: Freeze Point ºF
Range: +32 to -88
Resolution: 1
Precision: 2

DowFrost HD (PG) % v/v

Scale# 247
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost HD (PG) % w/w

Scale# 246
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowFrost HD (PG) Freeze ºC

Scale# 248
UoM: Freeze Point ºC
Range: 0 to -51
Resolution: 1
Precision: 1

DowFrost HD (PG) Freeze ºF

Scale# 249
UoM: Freeze Point ºF
Range: +32 to -60
Resolution: 1
Precision: 1

DowTherm 4000 % v/v

Scale# 263
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowTherm 4000 % w/w

Scale# 262
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowTherm 4000 Boil °C 101 kPa

Scale# 268
UoM: Boiling Point °C @ 101 kPa
Range: 100 to 145
Resolution: 1
Precision: 1

DowTherm 4000 Boil °F 760 mmHg

Scale# 269
UoM: Boiling Pt °F @ 760 mmHg
Range: 212 to 293
Resolution: 1
Precision: 2

DowTherm 4000 Freeze ºC

Scale# 264
UoM: Freeze Point ºC
Range: 0 to -48
Resolution: 1
Precision: 1

DowTherm 4000 Freeze ºF

Scale# 265
UoM: Freeze Point ºF
Range: +32 to -56
Resolution: 1
Precision: 2

DowTherm SR1 - EG % v/v

Scale# 255
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowTherm SR1 - EG % w/w

Scale# 254
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

DowTherm SR1 - EG Freeze ºC

Scale# 256
UoM: Freeze Point ºC
Range: 0 to -50
Resolution: 1
Precision: 1

DowTherm SR1 - EG Freeze ºF

Scale# 257
UoM: Freeze Point ºF
Range: +32 to -58
Resolution: 1
Precision: 2

Ethylene Glycol % v/v

Scale# 011
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Ethylene Glycol % w/w

Scale# 012
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Ethylene Glycol (D20/20)

Scale# 015
UoM: Specific Gravity (D 20/20)
Range: 1.0000 to 1.1153
Resolution: 0.0001
Precision: 0.0001

Ethylene Glycol (g/cm3)

Scale# 379
UoM: Density (g/cm3)
Range: 0.998 to 1.113
Resolution: 0.0001
Precision: 0.0002

Ethylene Glycol (H2O % v/v)

Scale# 465
UoM: % Water v/v
Range: 100 to 0
Resolution: 0.1
Precision: .1

Ethylene Glycol Boil °C

Scale# 381
UoM: Boiling Point °C
Range: 100 to 152
Resolution: 1
Precision: 1

Ethylene Glycol Boil °F

Scale# 380
UoM: Boiling Point °F
Range: 212 to 305
Resolution: 1
Precision: 1

Ethylene Glycol Freeze °C

Scale# 014
UoM: Freeze Point ºC
Range: 0 to -59
Resolution: 1
Precision: 1

Ethylene Glycol Freeze °F

Scale# 013
UoM: Freeze Point °F
Range: +32 to -79
Resolution: 1
Precision: 2

PG Freeze °C (GEN)

Scale# 909
UoM: Freeze Point °C
Range: 0 to -51
Resolution: 1
Precision: 1

PG Freeze °F (GEN)

Scale# 908
UoM: Freeze Point °F
Range: 32 to -60
Resolution: 1
Precision: 2

Propylene Glycol % v/v

Scale# 006
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol % w/w

Scale# 007
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol % w/w (GEN)

Scale# 907
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Propylene Glycol (D20/20)

Scale# 010
UoM: Specific Gravity (D20/20)
Range: 1.0000 - 1.0460
Resolution: 0.0001
Precision: 0.0001

Propylene Glycol (H2O %v/v)

Scale# 445
UoM: % water v/v
Range: 100 to 0
Resolution: 1
Precision: .1

Propylene Glycol Freeze °C

Scale# 009
UoM: Freeze Point ºC
Range: 0 to -51
Resolution: 1
Precision: 1

Propylene Glycol Freeze °F

Scale# 008
UoM: Freeze Point °F
Range: +32 to -60
Resolution: 1
Precision: 2

Ethanol % v/v @ 60 °F <

Scale# 680
UoM: % v/v @ 60 °F <
Range: 0 to 77
Resolution: 0.1
Precision: 0.2 / 0.2 / 1.0

Ethanol % v/v @ 60 °F >

Scale# 684
UoM: % v/v @ 60 °F >
Range: 94 to 100
Resolution: 0.1
Precision: .25

Ethanol % v/v 20°C <

Scale# 031
UoM: % v/v @ 20 °C <
Range: 0 to 76
Resolution: 0.1
Precision: 0.2 / 0.2 / 1.0

Ethanol % v/v 20°C >

Scale# 036
UoM: % v/v @ 20 °C >
Range: 93 to 100
Resolution: 0.1
Precision: 0.25

Ethanol % w/w <

Scale# 032
UoM: % w/w <
Range: 0 to 70
Resolution: 0.1
Precision: 0.2 / 0.2 / 1.0

Ethanol % w/w >

Scale# 037
UoM: % w/w >
Range: 90 to 100
Resolution: 0.1
Precision: 0.5

Ethanol (D20/20) <

Scale# 033
UoM: Specific Gravity (D20/20) <
Range: 1.000 to 0.869
Resolution: 0.001
Precision: 0.001

Ethanol (D20/20) >

Scale# 035
UoM: Specific Gravity (D20/20) >
Range: 0.820 to 0.790
Resolution: 0.001
Precision: 0.001

Ethanol (D60/60) <

Scale# 681
UoM: Specific Gravity (D60/60) <
Range: 1.000 to 0.871
Resolution: 0.001
Precision: .001

Ethanol (D60/60) °F >

Scale# 683
UoM: Specific Gravity (D60/60) >
Range: 0.794 to 0.820
Resolution: 0.001
Precision: .001

Ethanol Freeze °C

Scale# 030
UoM: Freeze Point °C
Range: 0 to -46
Resolution: 1
Precision: 1

Ethanol Freeze °F

Scale# 029
UoM: Freeze Point °F
Range: +32 to -51
Resolution: 1
Precision: 1

Ethanol g/cm3 >

Scale# 687
UoM: Density g/cm3 >
Range: 0.789 to 0.818
Resolution: 0.001
Precision: .001

Isopropyl % v/v

Scale# 041
UoM: % v/v
Range: 0 to 83
Resolution: 0.1
Precision: 0.25 Avg.

Isopropyl % w/w

Scale# 042
UoM: % w/w
Range: 0 to 80
Resolution: 0.1
Precision: 0.25 Avg.

Isopropyl (D20/20)

Scale# 043
UoM: Specific Gravity (D 20/20)
Range: 1.0000 to 0.8431
Resolution: 0.001
Precision: 0.001 Avg.

Isopropyl Freeze °C

Scale# 040
UoM: Freeze Point °C
Range: 0 to -40
Resolution: 1
Precision: 1

Isopropyl Freeze °F

Scale# 039
UoM: Freeze Point °F
Range: +32 to -40
Resolution: 1
Precision: 1

Isopropyl Viscosity (cP)

Scale# 044
UoM: Viscosity
Range: 1.000 to 2.582
Resolution: 0.01
Precision: 0.01

Methanol % v/v <

Scale# 023
UoM: % v/v <
Range: 0 to 45
Resolution: 0.1
Precision: 0.5 to 0.8

Methanol % v/v >

Scale# 027
UoM: % v/v >
Range: 84 to 100
Resolution: 0.1
Precision: 0.5 to 0.2

Methanol % w/w <

Scale# 024
UoM: % w/w <
Range: 0 to 40
Resolution: 0.1
Precision: 0.5 to 0.8

Methanol % w/w >

Scale# 028
UoM: % w/w >
Range: 80 to 100
Resolution: 0.1
Precision: 0.4 to 0.2

Methanol (D20/20) <

Scale# 025
UoM: Specific Gravity (D20/20) <
Range: 1.000 to 0.935
Resolution: 0.001
Precision: 0.001 to 0.005

Methanol (D20/20) >

Scale# 026
UoM: Specific Gravity (D20/20) >
Range: 0.849 to 0.793
Resolution: 0.001
Precision: 0.001 to 0.005

Methanol Freeze °C

Scale# 022
UoM: Freeze Point °C
Range: 0 to -39
Resolution: 1
Precision: 0.5 to 1.7

Methanol Freeze °F

Scale# 021
UoM: Freeze Point °F
Range: +32 to -39
Resolution: 1
Precision: 1 to 3

Calcium Chloride Freeze °C

Scale# 083
UoM: Freeze Point °C
Range: 0 to -54
Resolution: 1
Precision: 1

Calcium Chloride Freeze °F

Scale# 082
UoM: Freeze Point °F
Range: +32 to -65
Resolution: 1
Precision: 1

Calcium Chloride g/100 grams

Scale# 085
UoM: g/100 grams
Range: 0 to 40
Resolution: 0.1
Precision: 0.1

Calcium Chloride % w/w

Scale# 080
UoM: % w/w
Range: 0 to 40
Resolution: 0.1
Precision: 0.1

Calcium Chloride (D20/20)

Scale# 081
UoM: Specific Gravity (D20/20)
Range: 1.000 to 1.3957
Resolution: 0.001
Precision: 0.001

Calcium Chloride (ppt)

Scale# 084
UoM: Parts Per Thousands (ppt)
Range: 0 to 400
Resolution: 0.1
Precision: 1

Magnesium Chloride % w/w

Scale# 086
UoM: % w/w
Range: 0 to 30
Resolution: 0.1
Precision: 0.1

Magnesium Chloride (D20/20)

Scale# 087
UoM: Specific Gravity (D20/20)
Range: 1.000 to 1.276
Resolution: 0.001
Precision: 0.001

Magnesium Chloride (ppt)

Scale# 090
UoM: Parts Per Thousands (ppt)
Range: 0 to 300
Resolution: 0.1
Precision: 1

Magnesium Chloride Freeze °C

Scale# 089
UoM: Freeze Point °C
Range: 0 to -33
Resolution: 1
Precision: 1

Magnesium Chloride Freeze °F

Scale# 088
UoM: Freeze Point °F
Range: +32 to -27.4
Resolution: 1
Precision: 2

Magnesium Chloride g/100 grams

Scale# 091
UoM: g/100 grams
Range: 0 to 30g
Resolution: 0.1
Precision: 0.1

Sodium Chloride % Saturation

Scale# 168
UoM: % Saturation
Range: 0 to 100
Resolution: 1
Precision: 0.5

Sodium Chloride %w/w

Scale# 074
UoM: %w/w
Range: 0 to 26
Resolution: 0.1
Precision: 0.1

Sodium Chloride (D20/20)

Scale# 075
UoM: Specific Gravity (D20/20)
Range: 1.000 to 1.208
Resolution: 0.001
Precision: 0.001

Sodium Chloride (g/cm3)

Scale# 163
UoM: Density (g/cm3)
Range: 0.998 to 1.202
Resolution: 0.001
Precision: 0.001

Sodium Chloride (ppt)

Scale# 078
UoM: Parts Per Thousands (ppt)
Range: 0 to 26.4
Resolution: 0.1
Precision: 1

Sodium Chloride Baume (20°C)

Scale# 702
UoM: Baume (20°C)
Range: 0 to 25
Resolution: 0.1
Precision: .1

Sodium Chloride Freeze °C

Scale# 077
UoM: Freeze Point °C
Range: 0 to -21
Resolution: 1
Precision: 0.5

Sodium Chloride Freeze °F

Scale# 076
UoM: Freeze Point °F
Range: 32 to -6
Resolution: 1
Precision: .5

Sodium Chloride g/100 grams

Scale# 079
UoM: g/100 grams
Range: 0 to 26.4
Resolution: 0.1
Precision: 0.1

Refractometer Platform Choices

Inline-Process Refractometer:

The above scales are also available on any MISCO inline process refractometer or concentration sensors. They are made for continuous concentration measurement of process fluids.

MISCO Handheld Digital Refractometer:

MISCO has the most extensive refractometer scale library on the planet. Don't see what you want? Browse by handheld refractometer model or by refractometer application. Or give us a call. We can help!

From our Q&A Forum

Antifreeze & Heat Transfer (4)

I need a refractometer to check Glycerin, and possibly propylene glycol. What handheld palm abbe would be best for me? The PA202 or PA203 Will the PA202 measure glycol? Does the pa203 come with pre-installed scales or custom scales for each use? My application is for antifreeze. Fahrenheit readings please. Please advise.

With the right combination of scales, either the Palm Abbe PA202x or PA203 digital refractometer will handle the job of measuring glycerin and propylene glycol antifreeze solutions. Scales are available to read nearly any physical property of glycerin and propylene glycol, including scales for freeze point and concentration or other units of measure such as specific gravity, density, percent by weight or volume, and more.

Do you have any refractometer that can tell whether an unknown liquid is glycol or glycerin?

No, unfortunately a refractometer cannot tell the difference between glycol and glycerin. Although we do have refractometers with both glycol and glycerin scales, you must know which fluid you are testing and test it on the correct scale to get an accurate measurement of concentration or freeze point.

Hi, will your hand held (both glycerin/ glycol) read below zero. In Utah we are required to provide -0 readings. Please let me know.

The glycerin scale on the Palm Abbe digital refractometer can measure the freeze point of glycerin from +32 to -46 °F. It can read glycerin concentration from 0 to 100%. The propylene glycol scale for this refractometer can measure propylene glycol freeze point from +32 to -60 °F. It can also read propylene glycol concentration from 0 to 100%.

What is the difference between freezepoint and burst point when testing with a refractometer.

Freezepoint is the point that the first ice crystals form in the absence of supercooling. Burst point is the point that the solution freezes solid and bursts the vessel containing it. The burst point is usually 30-50 degrees colder than the freezepoint. Our Glycol & Battery Tester reads the freezepoint of both ethylene and propylene glycol solutions. If you need to know the burst point, take a reading on the Glycol & Battery Tester and use a chart (available from your antifreeze supplier) to cross-reference freezepoint to burst point or percent concentration.