SIK 2500 Alphanumeric from Preh-KeyTec is an alphanumeric keyboard with silicon surface. It is specially tailored for use in the industry designed. A further application of this keyboard in the food industry and other scopes with extreme environmental conditions. The special silicon surface protects against dust and liquids. The hermetic sealing of the entire keyboard allows use up to IP 65. The used keyboard technology works perfectly even with the use of work gloves. The key surface is protected with an epoxy resin sartorial against abrasion. The special feature of this keyboard is the backlighting of the keys. Especially for a safe operation even in an environment with limited brightness.