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Digital Brix Refractometer

Extech RF153

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The Extech RF153 can be used to take quick and accurate % Brix or Refractive Index (RI) measurements of dissolved sucrose level in liquids for beverage and food production, determine maturity of fruits and plants, or control the concentration of industrial fluids (such as cutting coolants, hydraulic fluids, and antifreeze) to extend equipment life and prevent corrosion. With a fast three second response time, the LCD displays % Brix or RI and temperature. The RF153 fits in the palm of your hand and it features built-in ATC, single zero calibration, prism cover, and auto memory storing 10 readings. It has rugged, low maintenance, water resistant (IP65) housing with convenient side spouts for easy drainage.

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General Specifications
Refractive Index (RI)
1.3301 to 1.4374 RI
Refractive Index (RI) Basic Accuracy
±0.0003 RI
Refractive Index (RI) Max Resolution
0.0001 RI
Response Time
3 seconds
Sensor Type
Photodiode array detector
0 to 53% Brix (10 to 40°C ATC)
Sucrose Basic Accuracy
Sucrose Max Resolution
0.1% Brix
Temperature (Contact)
39 to 140°F (4 to 60°C)
Temperature (Contact) Basic Accuracy
Temperature (Contact) Max Resolution
Additional Details
4.4 × 2.4 × 1.5" (113 × 60 × 38mm)
IP Rating
2 × AAA (1.5V) batteries
2 years
4.23oz (120g)
Related Documents
Export Restrictions

Export Restrictions

The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.

Extech RF153