Scientific Equipment Source
4-555 Wentworth Street East
Oshawa, ON, L1H 3V8
Tel: 905-231-0930
Fax: 905-231-0944


Hand-Held refractometer Atago Models ( new and refurbished )
N1 0-32%, N2 28-60%, N3 58-90%, N4 45-82%, N10 0-10%, N20 0-20%, N50 0-50%

A simple hand-held refractometer is described, which has a linear scale of refractive index. It is intended mainly for applications where simplicity and ease of use are the main requirements, and where the required accuracy does not warrant temperature correction. It provides a quick check of concentration to within 1% for most aqueous solutions and emulsions. Two versions of the refractometer are described, a reflection version using internal illumination, and a transmission version using external or ambient light. The former is potentially the more accurate, as it is free from geometrical aberrations, but the contrast tends to be low if there is any scattering material in the liquid; the latter gives a very high contrast, even in milky liquids.

Atago hand refractmeters are optical instruments which can quickly measure the concentration of aqueous angle of reflection, and thus by a very simple operation, they determine the refractive index of the liquid or material under test.

When the concentration of a liquid is measured by Atago hand refractometer, the difference in the temperature of the sample will cause a difference in the measured value. The scale of the refractometer is used for measurements at a temperature of 20C. To correct the reading a table is used.


If you are a bargain hunter please give us a call, we always have instruments in stock, which have not been refurbished and can be sold as is in working condition.

Scientific Equipment Source provides service and training on site in most of central Ontario this includes neighboring cities Ajax, Whitby, Pickering, Oshawa, Toronto, Mississauga. We can also provide training and courses on site on chromatograph (GC), HPLC in the Durham region; this includes Pickering, Ajax, Whitby, Oshawa. For other customers we can be also flexible on arrangements. For the rest of customer any equipment for repair has to be sent back by a courier.