IP65 rated waterproof and vandal resistant brushed 304 stainless steel industrial backlight keyboard with integrated 38.0mm optical trackball, this is a IK09 rated and fully-rugged panel-mounted keyboard. It is specially designed to meet IP65 specifications and with black electroplated surface treatment, which means it is resistant to harsh environment with salt mist, dirt, dust, water, ice, low temperature, oil, etc. LED backlight design which is available to use in dim or dark environment.