OPTi® Digital Handheld Refractometer - A high performance refractometer with a vast choice of scales for a wide range of applications – all in the palm of your hand.
The OPTi® Digital Handheld Refractometer is a high quality, UK made, simple-to-use, accurate, pocket sized refractometer offering measurement between 0-95 Brix and over 40 other scales.
The OPTi refractometer is constructed using the latest manufacturing techniques. Stainless steel injection moulding to form the easy clean prism dish and ultrasonic welding to bond the housing. Each OPTi displays information to the user via and easy-to-read LCD display, helping to make readings even easier than using a standard optical handheld refractometer.
Full 0-95 Brix Scale
The Brix scale is the most common scale used in refractometry, yet many refractometers cover only a small portion of it. OPTi gives you more, with coverage of the full Brix range (0-95) at no extra cost.
Each OPTi comes with 3 interchangeable scales pre-loaded from an onboard library of 50 individual choices - meaning there are over 9880 possible OPTi combinations.
Thanks to its durable design and vast range of scales, the OPTi is suitable for a wide range of applications; from the clinical laboratory to the harshest of environments. OPTi is the refractometer that fits in your pocket. With a long battery life, true portability, and durable design: OPTi refractometers are ready when you are. Readings from an OPTi refractometer are clear and defined thanks to the bold digital LCD display.
All OPTi refractometers feature a four decimal place LCD display, Temperature Compensation (ATC), robust design with IP65 rating, a choice of three scales in a single device.
Typical Specifications
Typical Specifications
|
Sucrose
(Brix) |
Refractive Index
|
Specific
Gravity (SG) |
Concentration
% |
Range
|
0-95
|
1.33-1.53
|
1.000-1.050
|
0-95
|
Resolution
|
0.1
|
0.0001
|
0.001
|
0.1
|
Accuracy
|
0.2
|
0.0003
|
0.003
|
0.2
|
Temperature Compensation (ATC)
|
Brix (ICUMSA)
|
Application Specific or Brix
|
||
Ambient Temperature Range
|
5-40°C (Ambient)
|
5-95°C (Sample)
|
Scale List
Complete list of OPTi scales selectable through the onboard library.
Application
|
Scale
|
Units
|
Range
|
Resolution
|
Accuracy
|
ATC
|
Primary
|
°Brix (ATC)
|
|
0–95
|
0.1
|
±0.2
|
°Brix
|
Primary
|
°Brix
|
|
0–95
|
0.1
|
±0.2
|
None
|
Primary
|
Refractive Index (ATC)
|
|
1.33–1.53
|
0.0001
|
±0.0003
|
°Brix
|
Primary
|
Refractive Index
|
|
1.33–1.53
|
0.0001
|
±0.0003
|
None
|
Automotive
|
AdBlue®/DEF (NOx reduction)
|
% Weight / Weight
|
0–40
|
0.1
|
±0.2
|
AUS32
|
Automotive
|
Ethylene Glycol
|
°C Freezing Point
|
0 to -50
|
1
|
±1
|
EG
|
Automotive
|
Ethylene Glycol
|
°F Freezing Point
|
30 to -40
|
1
|
±1
|
EG
|
Automotive
|
Propylene Glycol
|
°C Freezing Point
|
0 to -50
|
1
|
±1
|
PG
|
Automotive
|
Propylene Glycol
|
°F Freezing Point
|
30 to -40
|
1
|
±1
|
PG
|
Food & Beverage
|
°Butyro
|
|
0–100
|
0.1
|
±0.5
|
Butyro
|
Food & Beverage
|
42 HFCS (High Fructose Corn Syrup)
|
% Weight / Weight
|
0–95
|
0.1
|
±0.2
|
°Brix
|
Food & Beverage
|
55 HFCS (High Fructose Corn Syrup)
|
% Weight / Weight
|
0–95
|
0.1
|
±0.2
|
°Brix
|
Food & Beverage
|
90 HFCS (High Fructose Corn Syrup)
|
% Weight / Weight
|
0–95
|
0.1
|
±0.2
|
°Brix
|
Food & Beverage
|
Fructose
|
% Weight / Weight
|
0–85
|
0.1
|
±0.2
|
°Brix
|
Food & Beverage
|
Glucose
|
% Weight / Weight
|
0–85
|
0.1
|
±0.2
|
°Brix
|
Food & Beverage
|
Invert Sugar
|
% Weight / Weight
|
0–85
|
0.1
|
±0.2
|
°Brix
|
Food & Beverage
|
Maltose
|
% Weight / Weight
|
0–60
|
0.1
|
±0.2
|
°Brix
|
Food & Beverage
|
Salinity (NaCl)
|
% Weight / Volume
|
0–28
|
0.1
|
±0.2
|
NaCl
|
Food & Beverage
|
Total Solids of Waste Milk
|
%
|
5–15
|
0.1
|
±0.5
|
°Brix
|
Food & Beverage
|
Water in Honey
|
% Weight / Weight
|
10–30
|
0.1
|
±0.2
|
Honey
|
Industrial
|
Arbitrary
|
|
0-95
|
0.1
|
±0.2
|
|
Industrial
|
Calcium Chloride
|
% Weight / Weight
|
0–40
|
0.1
|
±0.2
|
CaCl2
|
Industrial
|
Ethanol
|
% Volume / Volume
|
0–20
|
0.5
|
±1
|
Ethanol
|
Industrial
|
Ethylene Glycol
|
% Volume / Volume
|
0–60
|
0.1
|
±0.4
|
EG
|
Industrial
|
Ethylene Glycol
|
% Weight / Weight
|
0–60
|
0.1
|
±0.4
|
EG
|
Industrial
|
FSII DiEGME (ASTM D 5006)
|
% Volume / Volume
|
0.0–0.25
|
0.01
|
±0.02
|
°Brix
|
Industrial
|
Hydrogen Peroxide
|
% Weight / Weight
|
0–50
|
0.2
|
±0.5
|
°Brix
|
Industrial
|
Methanol
|
% Weight / Weight
|
0–40
|
1
|
±0.2
|
Meth
|
Industrial
|
Propylene Glycol
|
% Volume / Volume
|
0–60
|
0.1
|
±0.4
|
PG
|
Industrial
|
Sodium Sulphate
|
% Weight / Weight
|
0–22
|
0.1
|
±0.2
|
Na2SO4
|
Industrial
|
Starch
|
%
|
0–30
|
0.1
|
±0.2
|
°Brix
|
Industrial
|
Sulphuric Acid (Battery Acid)
|
Specific Gravity (d20/20)
|
1.000–1.501
|
0.001
|
±0.003
|
SA
|
Industrial
|
Urea (CRC data)
|
% Weight / Weight
|
0–40
|
0.1
|
±0.2
|
AUS32
|
Life Science
|
Colostral Quality
|
|
Poor / PASS
|
Poor / PASS
|
±0.2
|
°Brix
|
Life Science
|
Seawater (Practical Salt Units)
|
Part Per Thousand
|
0–180
|
1
|
±1
|
NaCl
|
Life Science
|
Seawater (Practical Salt Units)
|
Specific Gravity (d20/20)
|
1.000–1.090
|
0.0005
|
±0.001
|
NaCl
|
Life Science
|
Serum Protein
|
g/100ml
|
0–30
|
0.1
|
±0.2
|
°Brix
|
Life Science
|
Urine (SG) Human
|
Specific Gravity (d20/20)
|
1.000–1.050
|
0.0005
|
±0.0010
|
°Brix
|
Life Science
|
Urine (SG) Large Mammal
|
Specific Gravity (d20/20)
|
1.000–1.050
|
0.0001
|
±0.0010
|
°Brix
|
Life Science
|
Urine (SG) Small Mammal
|
Specific Gravity (d20/20)
|
1.000–1.050
|
0.0005
|
±0.0010
|
°Brix
|
Wine & Beer
|
°Baumé
|
|
0–50
|
0.1
|
±0.2
|
°Brix
|
Wine & Beer
|
°Zeiss (ABV)
|
% Volume / Volume
|
10–135
|
0.1
|
±0.5
|
°Brix
|
Wine & Beer
|
Alcohol Probable (AP)
|
|
0–22
|
0.1
|
±0.2
|
°Brix
|
Wine & Beer
|
KMW (Babo)
|
|
0–25
|
1
|
±1
|
°Brix
|
Wine & Beer
|
Oechsle (German)
|
|
30–130
|
1
|
±1
|
°Brix
|
Wine & Beer
|
Oechsle (Swiss)
|
|
0–130
|
1
|
±1
|
°Brix
|
Wine & Beer
|
°Plato
|
|
0–30
|
0.1
|
±0.2
|
°Brix
|
Wine & Beer
|
Mass Sugar (°Brix) (ATC)
|
% Weight / Weight
|
0–95
|
0.1
|
±0.2
|
°Brix
|
Wine & Beer
|
Mass Sugar (°Brix)
|
% Weight / Weight
|
0–95
|
0.1
|
±0.2
|
None
|
Wine & Beer
|
Wort (Sucrose Equivalent)
|
Specific Gravity (d20/20)
|
1.000–1.120
|
0.0005
|
±0.001
|
°Brix
|
Typical Specifications
|
Sucrose
(Brix) |
Refractive Index
|
Specific
Gravity (SG) |
Concentration
% |
Range
|
0-95
|
1.33-1.53
|
1.000-1.050
|
0-95
|
Resolution
|
0.1
|
0.0001
|
0.001
|
0.1
|
Accuracy
|
0.2
|
0.0003
|
0.003
|
0.2
|
Temperature Compensation (ATC) | Brix (ICUMSA) | Application Specific or Brix | ||
Ambient Temperature Range | 5-40°C (Ambient) | 5-95°C (Sample) | ||
Special Features | -HAL- High Ambient Light detection, Error messaging, Battery life indicator, AG Test Mode, Scale library, Delay before reading, °F/°C switch, Serial & Version No, PIN control | |||
Prism Dish | Moulded Stainless Steel | |||
Prism Seal | Silicone | |||
Prism | 8mm optical glass | |||
Sample Illumination | LED (yellow) | |||
Display | 4 1/2 digital LCD | |||
Key Functions | READ, ZERO | |||
Keypad Material | Silicone rubber | |||
Case Material | Acrylonitrile Butadiene Styrene (ABS) | |||
IP Rating | IP65 | |||
Humidity | <95% RH (non-condensing) | |||
Battery / Battery Life | 3V, 2 x AAA (LR03) / 10,000 readings | |||
Nett Weight | 115 grams (including batteries) | |||
Gross Weight | 295 grams | |||
Dimensions (instrument) | 12 x 5.5 x 3.5cm (L x W x H) | |||
Dimensions (packed) | 25 x 10 x 6.5cm (L x W x H) | |||
Code No. | 38-01 | |||