Position monitoring i6 | P2 Proust group Safe rope-pull swill Propensity Safe rope-pull switch Propensity Whether on the assembly line or machine where safety in the production area is conceded, the safe rope-pull switch Propensity is a proven, reliable solution. Propensity switches off functional processes by manual action. It provides maximum safety, as the emergency stop function can be triggered at any point along the rope. Bt PEEN rg1.