For Busch-Wächter® 110 MasterLINE. For Busch-Wächter® 220 MasterLINE. For Busch-Wächter® 220 MasterLINE select. For Busch-Wächter® 220 MasterLINE premium. For Busch-Wächter® 280 MasterLINE. The following functions can be switched: Switch light on for 4 hours, activate/deactivate. Switch light off for 4 hours, activate/deactivate. Activate/deactivate presence simulation. Set current brightness value as limit value/reset to device setting. With coded transmission signal. Power supply: lithium button cell type CR2025. Battery life: typically 2 years. Battery included in delivery.