Based on this product's specifications, here are some alternatives and similar models
Projector InFocus Nemesis II 5000 ANSI lumens DLP WXGA 1280x800 White
Summary description:
The InFocus Nemesis II projector features 5000 ANSI lumens brightness, DLP technology, and WXGA resolution (1280x800). It has a laser light source with a lifespan of 30000 hours, manual focus, and a focal length range of 20.91 - 32.62 mm. It supports graphics resolutions up to 1920 x 1200 (WUXGA) and includes an RS-232 serial interface.