C9404CA Mini-Spectrometer TG Series from Hamamatsu Photonics

TG series mini-spectrometers are polychromators integrated with optical elements, an image sensor and a driver circuit. Light to be measured is guided into the entrance port of TM series through an optical fiber and the spectrum measured with the built-in image sensor is output from the USB port to a PC for data acquisition. The C9404CA is high sensitivity mini-spectrometers employing a back-thinned type CCD image sensor. Their sensitivity is about two orders of magnitude higher than CMOS types making them even more ideal for low-lightlevel measurement. Their products come supplied with free sample software that allows setting measurement conditions, acquiring and saving data, and displaying graphs. Driver software and DLL are also supplied as accessory items to allow the users to configure their own measurement software..


  • Integrated with back-thinned type CCD image sensor
  • High throughput due to transmission grating made of quartz
  • Easy to install into equipment
  • Wavelength conversion factor is recorded in internal memory
  • Supports external trigger input


Spectral response range

200 to 400

Spectral resolution (FWHM) (max.)

3 nm



A/D resolution

16 bits


USB 1.1

Built-in sensor

Back-thinned CCD image sensor

Number of total pixels

1024 pixels

Measurement condition

Typ. Ta=25°C, unless otherwise noted