1. Frame and keys are made of RoHS approved zinc alloy material 2. Conductive rubber with carbon granules - Contact resistance: ≤150Ω - Elastic force: 200g 3. 1.5mm thickness UL approved printed circuit board with golden fingers
The 12 key Z.series keyboard with braille are specially designed for public environment applications, such as vending machines, ticket machines, payment terminals, telephones, access control systems and industrial machinery with braille keys.