This a 14" color CRT monitor for computers with CGA (9-pin) video output. Two slightly different versions of the CM-5 were made; they were manufactured during the 1980s and early 1990s. It was priced at $299 in the 1992 Radio Shack catalog, no different from its price in 1989.

Most computer systems compatible with this display were made between 1983 and 1992; they included such models as the Tandy 1000 SL, 1400 LT, and IBM PC-XT. It has controls for adjusting the brightness and contrast. A date of manufacture is printed on the back of some units.

ELECTRICITY: The Tandy CM-5 uses no electricity when turned off but plugged in. It uses about 50 watts when it is powered on but the computer is off. Power consumption is briefly higher when it is first turned on. It uses less power when screen colors are darker, as well as when the brightness control is turned down. At medium brightness, it uses about 46 watts to display a mostly black screen, and 54 watts for a completely bright white screen. For a screen with a moderately bright mix of colors (white, red, black, gray) it uses 50 watts.