DUO-TOUCH Two-Hand Control Safety Modules. The Turck Banner DUO-TOUCH Two-Hand Control system has been designed to meet the requirements of ISO 1381 (EN 574) safety of machinery – two-hand control devices and category 1 and 3 requirements of ISO 13849-1 (EN 954-1). The DUO-TOUCH two-hand safety modules feature two redundant, Forced guided output contacts rated at 4A and is available with 24V AC/DC or 115V a supply voltages. Features four indicator LEDs for power, Input 1, Input 2 and fault Monitors the status of machine control elements DIN-rail-mountable 45-mm-wide housing Responds in 25 milliseconds or less