Display Size 21.5 inches Touch / Glass Projected Capacitive Multi Touch Screen Resolution 1920x1080 Panel Brightness 250 nits Contrast Ratio 3000:1 View Angles 89,89,89,89 Display Color 16.7M Colors Active Area 476.64x268.11 mm Mechanical Dimension 541 x 337 x 56.2 mm Mounting VESA Mount Yoke Mount Enclosure Stainless Housing Cooling System Fanless design Environment Operating Humidity 10% to 90% (non-condensing) Operating Temperature 0~45°C Storage Temperature -20~60°C IP rating IP65 Certification Certification CE, FCC Control Button 1 x Power Button 1 x Adjust up button 1 x Adjust down button 1 x ESC (Auto) button 1 x OK (Menu) button IO Ports USB Port 1 x M12 waterproof connector for touch screen control Video 1x M12 type connector for VGA input 1x waterproof connector for DVI input (Optional) 1x waterproof connector for HDMI input (Optional) Indicator 1 x LED Indicator for power 1 x LED Indicator for status Accessory Accessory 100~240V AC to DC Adapter with waterproof connector Power Cord External USB cable with waterproof connector for touchscreen control External VGA cable with waterproof connector Waterproof caps Manual VESA screws Optional Accessory External HDMI cable with waterproof connector (Optional) External DVI cable with waterproof connector (Optional) Power Power Rating 12V DC (M12 type)