● 16 or 24 keys ● Dust-proof and liquid-proof ● Vandal-proof ● Can be cleaned with disinfection solution and other cleaning agent ● Specially designed to operate in harsh environments, making them ideal for web payphones, internet kiosks and other applications in public places. ● Material: stainless steel ● Excellent tactile feel ● Layout versions can be customized SPECIFICATIONS Mechanical lifetime: >2 Mio operations Min. Switching current: 0.1mA Max. Switching current: 100mA Min. Switching voltage: AC/DC 20mV Max. Switching voltage: AC/DC 30V Puncture strength: 500V Insulation resistance: >100,000,000 Ohm Contact bounce time: typ. <5mS Max. Mechanical loading: practically unlimited Actuation force: 3N(pressure point) Key travel: 0.45mm Temperature range: Operating: -10℃~60℃ Storage: -25℃~80℃ Size: 116 x 97.5 mm