Three compact IR viewers have been introduced by Power Technology Inc. for applications that require the observation of light emitted by IR sources. The IRVM is a CCD camera that views and records radiation from 400 to 1700 nm and has a built-in 4-in. TFT-LCD monitor for digital viewing of images. The IRVE is a CCD camera that views, registers and records radiation in the same range. Users must supply their own monitor for image viewing. The IRVH is a hybrid intensified CCD camera with an IR image converter. It has an integrated 4-in. monochromatic TFT-LCD display and operates in the 350- to 1700-nm range.