Product Description: The Linepro LP2319 is a rugged 4x3 stainless steel industrial keypad engineered for high-use environments such as vending, ticketing, and dispensing machines. Built from premium #304-grade stainless steel with IP65 protection, it offers outstanding durability, vandal resistance, and long operational life — ideal for both supervised and semi-supervised installations. Key Features: Built with #304 stainless steel for maximum strength and corrosion resistance IP65-rated for protection against dust, dirt, and fluid spills Metal dome switch with a rugged PCB ensures reliable performance No removable keycaps, preventing tampering and enhancing security Flexible rack-mount or top-mount installation options Laser-marked key symbols for long-lasting visibility ROHS compliant, tested for 10 million+ key operations Product Details: Key Layout: 4x3 (12 keys) Input Voltage: DC 5V ±5% Dimensions: 72 × 88 mm Key Travel: 0.4 mm Weight: 0.3 kg Key Marking: Laser Engraved MTBF: > 50,000 hours MTTR: < 30 minutes Operating Temperature: -40°C to +70°C Relative Humidity: 30%–90% RH Air Pressure: 60–106 KPa