This numeric keypad is designed to withstand harsh environmental conditions and stands out with its compact size of 16 keys. 0.45mm full-travel keys and laser-etched graphics provide excellent tactile feedback. Made of 304 stainless steel, it has high vandal resistance and features dust and liquid resistance that meet IP65 standards. Offering USB, PS2, RS232 and Matrix interface options, this product is a suitable choice for kiosks and other public place applications. It can adapt to the needs of users with customizable layout options.