Exclusive Offer!
ENTER TO WIN

Refractive index measurements have become commonplace within the petrochemical industry because of their ability to quickly and reliably determine key parameters for samples of interest.

Want to get your hands on the new OPTI-M refractometer for free? We are giving away 1 refractometer to one lucky winner! Register today for your chance to win! Winner will be notified by 12/18/20.

Portable. Reliable. Digital. OPTi.

The OPTi® Digital Handheld Refractometer is a truly portable instrument that fits in the palm of your hand, and is capable of giving you over 10,000 readings on just 2 batteries. It features a stainless steel prism dish which rapidly stabilizes sample temperature, a durable IP65 rated body, and a clear LCD display.

Easy as 1, 2, 3

With up to 3 scales readily available at the touch of a button, the OPTi® is the most versatile and feature rich refractometer on the market. Need to switch scales between each application? Not a problem! Switching scales only takes a moment, and with a read time of 2 seconds per sample, the OPTi® is one of the quickest and most convenient ways to monitor and control your concentration on-the-go.

An OPTi® For All Occasions

The OPTi® Digital Handheld Refractometer can be used in a variety of industries – from food and beverage to veterinary sciences. Measure soluble oils, quenchants, glycols, antifreeze, air-conditioning and heat transfer fluids, aviation fuel inhibitors, airplane wing surfactants, starch, textile surfactants and more!

We use cookies and beacons to improve your experience on our site. Read more about this in our Privacy Policy.
Bellingham + Stanley, a Xylem brand, has a long standing history of producing high precision refractometers and polarimeters in easy-to-use packages. The new OPTI-M handheld refractometer that gives the user the ability to measure over a wide range of concentrations with 50 built in scales and 3 different channels giving the user flexibility in an easy to use handheld device.