The 77709 Hand Controller is designed specifically for use with the Oriel^® MS257 series monochromators and spectrographs. It is very easy to set up – simply plug it into the instrument and it’s ready to go. There is no need to purchase a computer and set up the software. The Hand Controller is a very convenient option in locations where security is an issue, such as defense facilities and universities.

There is no need to memorize commands or key sequences. The keys are clearly labeled with functions like "Shutter", "Go Wave" and "Filter". The backlit LCD display provides information on the grating selection, grating line density, active filter position, current wavelength and shutter status. Using the Hand Controller is intuitive and provides access to nearly all the functionality of the monochromators and spectrographs. It comes with a 14 foot [4.3 meter] long cable.