Door access control security no touch infrared exit button features 1. stainless steel panel, steel button 2. finish: stainless steel brushed 3. easy installation 4. life service: up to 500,000 operations 5. for access control system 6. ce certificate by european union specification model dh-k810 size 86 x 86 x 20 mm material stainless steel panel, steel button finish stainless steel brushed current rating 3a max output contact no/com service life 500,000 times application access control system working temp. -30°c~60°c working himidity 10%~90%rh certification ce, rohs, cma weight approx.: 0.1kg