Digital Colorimeters with Alpha - Numeric Backlit Display are reliable, stable and sturdy in daily operation. Kanad Vidyut manufactures Digital Colorimeters with Alpha - Numeric Backlit Display.
Kanad Vidyut also manufactures Blood Testing Instruments, Bio-Chemistry Analysers. Digital Colorimeters with Alpha - Numeric Backlit Display is very easy with wavelength selection rotary switch. This switch has WL markings for 450, 505, 530, 580 and 630 Nms. These Colorimeters can operate on torch cells. It is available with small reagent volume, like 500 ul in square or 1ml in round cuvettes.
It is available under the brand name of Hans 253.