21.5 Inch Wall-mounted LCD Visual Acuity Vision Chart Optical Testing Monitor Eye Testing Chart SC-800

Features of product: 1 Ultra-thin and ultra-light design, high-definition scheme, professional multi-body audio and video processing technology, fast switching, convenient operation. 2 Providing a separable display function, and a visual mark array with up to 3 rows and 8 columns, which makes the inception faster and more convenient. 3 Contain all visual marks, including: international C word mark, national standard E word mark, letter visual mark, children visual mark, digital visual mark, astigmatism visual mark, cross visual mark, binocular balance visual mark, color blindness detection visual mark, and etc. 4 The installation is quick and convenient, and you can choose either sitting or hanging the equipment, which is easy for maintenance. 5 Using high-resolution LCD screen, with clearer visual marks. 6 U disk can be connected. 7 Instrument appearance size:504mm (L) x 304mm (W) x 45mm(H) 8) Weight: 2.2kg