ESV3000 ETDRS Standardized Viewer from Good-Lite (Formerly Richmond Products, Inc.)

The only ETDRS viewing cabinet that self-calibrates ilumination on the chart surface for both photopic (85 cdm²) and mesopic light level testing. The unit utilizes the most advanced self-monitoring LED light source technology, providing uniform and highly calibrated illumination across the entire testing surface (Patent 5,078,486). Automatically adjusts to incoming power of 100 to 240 VAC. Controlled bt infrared wireless remote. Chart storage in back. Compatible with all existing high contrast (black) EDTRS charts. Measures 24.5"H x 25.5"W x 3.75"D (62cm W x 65cm H x 36cm D).