Using its patented technology, Science & Sensors Technologies, S&ST, developed, and is commercializing, a new optical fiber colorimeter to simultaneously measure the concentration of different chemical concentrations in water (see Figure 1). This device can determine the concentration of chemicals in multiple samples, using a single detection system, significantly reducing the cost of performing these measurements. With this apparatus, measurements can be made using absorption, fluorescence, scattering and reflection from the sample. An illustration of this device is shown in Figure 2. The current device uses three LEDs, bottom of the illustration, to illuminate three different cuvettes with liquid samples.


By removing the cuvette samples, this device doubles up as a Planck constant experiment apparatus. This is done by determining the knee voltage of different LEDs and using the peak wavelength of the LEDs and the equation for energy conservation.

Purchase the Colorimeter here
$995 plus $30 shipping
Includes: Optical Fiber Colorimeter, 3 cuvettes, 1 photometer and instruction manual






Colorimetric Box

  Length (cm)  Width (cm) Height (cm)
Dimensions 19.5 8.0 5.5
Number of cuvettes 3 (*)


Number of light sources


Each colorimetric box has up to three LED light sources with peak wavelengths that vary from that 370 to 940 nm. (*) Please, specify your wavelength region. We also make offer colorimeters white light sources that span the full visible spectrum.
LED driver (Integrated with the colorimetric box) Channels 3
Battery 9 to 12Volts
Current Adjustable from 0 to 20 mA



  Length (cm)  Depth (cm) Width (cm)
Dimensions Outer 4.4 1.2265 1.2265
  Inner 3.2 0.9945 0.9945
Color Transparent
Material Plastic
Optical fiber   Length (cm)  Diameter (cm)
Dimensions 22.1 From 1.50 to 2.00 mm
Connector SMA

(*) Custom made devices that handle more than three cuvettes samples and have more than three light sources can be ordered.