LED Optical Refractometer – ToronOR™ LED Series
An Optical Refractometer in the ToronOR™ LED Series is a handheld analog Refractometer with built-in LED illumination for easier reading in dark, low-light, or twilight environments. The ToronOR™ LED Series is the manual refractometer platform with an integrated LED daylight plate, pure aluminum construction, and compatibility with multiple refractometer types and scales.
This series is designed for users who want the simplicity of a traditional optical refractometer but need better visibility than a standard ambient-light-only model. The LED plate can be fitted across many common refractometer types, including Brix, honey, salinity, automotive fluid, wine, clinical, milk, and beer models.
A handheld Optical Refractometer measures how light bends through a liquid sample, then converts that change into a direct reading on the internal scale. The LED version keeps the same manual prism-based reading method as a standard optical refractometer, but adds built-in illumination so the scale remains clear when ambient light is poor. One press turns the LED on and keeps it on, and a second press turns it off.
The series is built around a modular concept. Instead of being limited to one application, the LED daylight plate can be used across many refractometer types, which makes the ToronOR™ LED Series suitable for broader OEM/private-label or multi-application supply programs. The ToronOR™ LED Series design with five LED cover button color options and multiple box colors.
LED Optical Refractometer – ToronOR™ LED Series Application
- Low-light field and workshop testing: The LED system is the biggest advantage of this series. The ToronOR™ LED Series is built-in bright LED light allows testing in dark or twilight environments and makes the scale easier to see. This is useful for service work, mobile inspections, outdoor checks, and plant-floor testing where lighting is not always stable.
- Food and beverage concentration checks: The model table includes LED versions for Brix, honey, wine, beer, and milk applications. That makes the series suitable for sugar concentration checks, honey moisture screening, winery process monitoring, brewing checks, and dairy-related refractometer work, depending on the model selected.
- Automotive and industrial fluid testing: including antifreeze, battery electrolyte, cleaning fluid, washer fluid, DEF/AdBlue, and alcohol concentration. This makes the platform suitable for workshops and maintenance teams that want the readability benefit of LED lighting during field checks.
- Clinical and laboratory screening: for serum protein, urine specific gravity, refractive index, and veterinary dog/cat scales. These models fit settings where fast manual refractometer readings are still useful, especially when lighting conditions are inconsistent.

Standards
- EN 61000-6-1: 2007
- EN 61000-3-2: 2014
- EN 61000-3-3: 2013
- EN 61000-6-3: 2007+A1:2011+AC:2012
- EN 61000-4-2: 2009
- EN 61000-4-3: 2006+A1:2008+A2:2010
- EN 61000-4-4: 2012
- EN 61000-4-5: 2014
- EN 61000-4-6: 2014
- EN 61000-4-8: 2010
- EN 61000-4-11: 2004
LED Optical Refractometer – ToronOR™ LED Series Key Features
- Built-in bright LED light for testing in dark or twilight conditions.
- One-touch LED control that stays illuminated until pressed again.
- Compatible with many refractometer types by changing the cover plate.
- Pure aluminum body construction with durable manual design.
- Uses ambient light for optical reading, with added LED support for low-light use.
- Easy focus and calibration design with soft non-slip rubber grip.
- ATC function with compensation range of 10°C to 30°C (50°F to 86°F).
- Large scale plate for easier reading.
- Calibrated before shipment for direct use after receipt.
- Multiple LED button colors and multiple box colors available.
Theory and Method
The ToronOR™ LED Series uses the same prism-based optical method as a conventional handheld refractometer. A small sample is placed on the prism, the cover plate is closed, and the user reads the scale at the light/dark boundary through the eyepiece. The difference is that the LED daylight plate adds internal illumination, which improves contrast and readability in poor lighting. The main components were the LED daylight plate, prism assembly, calibration screw, rubber grip, focus adjustment, and eyepiece.
This means the LED feature improves usability rather than changing the core refractometric principle. The LED plate can be adapted to most refractometer types on the market by changing the cover plate, which supports retrofit-style use as well as complete instrument supply.
LED Optical Refractometer – ToronOR™ LED Series Technical Specification
| Model | What this model is for | Scale details | Min. division | Best-fit use case |
|---|---|---|---|---|
| ToronOR™ LED B5 | LED low-range Brix refractometer | 0–5% Brix | 0.10% Brix | Dilute sugar solutions, low-Brix beverages, light process liquids |
| ToronOR™ LED B10 | LED low-range Brix refractometer | 0–10% Brix | 0.10% Brix | Juice, beverage, and low-solids process checks |
| ToronOR™ LED B18 | LED mid-low Brix refractometer | 0–18% Brix | 0.10% Brix | Fruit juice and general soluble-solids checks |
| ToronOR™ LED B20 | LED general Brix refractometer | 0–20% Brix | 0.10% Brix | Beverages and syrup process screening |
| ToronOR™ LED B32 | LED broad Brix refractometer | 0–32% Brix | 0.20% Brix | Broader food and beverage concentration checks |
| ToronOR™ LED B50 | LED higher-range Brix refractometer | 0–50% Brix | 0.50% Brix | Syrups, sauces, jam-related solutions |
| ToronOR™ LED B55 | LED higher-range Brix refractometer | 0–55% Brix | 0.50% Brix | Higher-solids food process checks |
| ToronOR™ LED B62 | LED upper-mid Brix refractometer | 28–62% Brix | 0.20% Brix | Concentrated liquids needing better mid-high resolution |
| ToronOR™ LED B82 | LED high-range Brix refractometer | 45–82% Brix | 0.20% Brix | Honey solutions, jam, high-solids foods |
| ToronOR™ LED B90 | LED very high-range Brix refractometer | 58–90% Brix | 0.50% Brix | Honey and very concentrated sugar products |
| ToronOR™ LED B90D | LED very high-range Brix refractometer | 0–90% Brix | 0.50% Brix | Very wide Brix coverage in one model |
| ToronOR™ LED HM90 | LED honey refractometer | 58–90% Brix / 38–43°Bé / 12–27% water | 1% water | Honey ripeness and moisture checks |
| ToronOR™ LED HM92T | LED honey refractometer | 58–92% Brix / 38–43°Bé / 12–27% water | 0.50% Brix / 1% water | Wider-range honey concentration and moisture work |
| ToronOR™ LED HM30 | LED honey moisture refractometer | 10–30% water | 0.10% water | Direct honey moisture screening |
| ToronOR™ LED S10 | LED salinity refractometer | 0–10% salinity / 1.000–1.0 70 SG | 0.10% / 0.001 sg | Brine and salt-water checks |
| ToronOR™ LED S25 | LED salinity refractometer | 0–25% salinity | 0.20% salinity | Higher-range salt concentration checks |
| ToronOR™ LED AI300 | LED automotive fluid refractometer | -50°F to 32°F / -50°F to 32°F / B1.15–1.3 0 sg | 10°F / 0.01 sg | Antifreeze and battery checks in Fahrenheit scales |
| ToronOR™ LED AI403 | LED automotive fluid refractometer | E -50°C to 0°C / P -50°C to 0°C / C -40°C to 0°C / B 1.15–1.30 sg | 0.01 sg / 5°C | Coolant, cleaning fluid, and battery service |
| ToronOR™ LED AI503 | LED automotive fluid refractometer | B 1.100–1.4 00 sg / E -50°C to 0°C / P -50°C to 0°C / C -40°C to 0°C | 0.01 sg / 5°C | Workshop multi-fluid checks |
| ToronOR™ LED AI701 | LED automotive/DEF refractometer | DEF 30–35% / B 1.100–1.4 00 sg / E -50°C to 0°C / P -50°C to 0°C / C -40°C to 0°C | 0.10 sg / 5°C | DEF plus coolant, battery, and cleaning fluid checks |
| ToronOR™ LED AI801 | LED DEF refractometer | DEF / AUS 32 concentration 0–40% | 0.25% Urea | DEF concentration verification |
| ToronOR™ LED WA80 | LED alcohol refractometer | Alcohol 0–80% w/w | 1% vol | Alcohol concentration checks |
| ToronOR™ LED WA25Brix | LED wine refractometer | 0–25% vol / 0–40% Brix | 0.20% vol / 0.20 Brix | Wine and must checks using alcohol + Brix scales |
| ToronOR™ LED WA22.5Be | LED wine refractometer | 0–22.5°Ba umé / 0–25% vol / 0–40% Brix | 0.50% vol / 0.50 Brix / 0.50°Be | Wine and alcohol process control using Baumé plus Brix/vol |
| ToronOR™ LED WA25Vol | LED wine refractometer | 0–25% vol / 0–170°Oe | 0.50% vol / 0.50°Oe | Winery checks using alcohol + Oechsle |
| ToronOR™ LED B32S | LED wine/must refractometer | 0–140°Oe / 0–27 KMW(Bab o) / 0–32% Brix | 0.20 KMW / 0.20% Brix / 2°Oe | Wine and grape must multi-scale checks |
| ToronOR™ LED B44S | LED wine/must refractometer | 0–190°Oe / 0–38 KMW(Bab o) / 0–44% Brix | 0.20 KMW / 0.20% Brix / 0.50°Oe | Wider-range wine and must monitoring |
| LED-RHC-200 | LED clinical refractometer | Clinical 1.2 g/dL / 1.000–1.0 50 sg / 1.3300–1. 3600 RI | 0.20 g/dL / 0.005 sg / 0.0005 RI | Serum protein, urine SG, and RI screening |
| LED-RHC-300 | LED veterinary refractometer | Clinical 2–14 g/dL / Dog 1.000–1.0 60 / Cat 1.000–1.0 60 | 0.20 g/dL / 0.001 Dog / 0.001 Cat | Veterinary urine and protein screening |
| ToronOR™ LED B611 | LED milk refractometer | Milk 0–20% | 0.10% milk | Milk screening applications |
| ToronOR™ LED B612 | LED milk/soybean refractometer | Milk 0–25% / Soybean 0–32% Brix | 0.50% milk / 0.20% Brix | Milk and soybean beverage checks |
| ToronOR™ LED B326G-1 | LED beer refractometer | Beer 0–25% Brix / Wort SG 1.000–1.1 20 | 0.25% Brix / 0.001 SG | Brewing and wort concentration checks |
| ToronOR™ LED B326G-2 | LED beer refractometer | Beer 0–32% Brix / Wort SG 1.000–1.1 30 | 0.25% Brix / 0.001 SG | Brewing checks with wider wort SG range |