Muting accessories, muting arm kit M4000, 4 sensors, parallel muting, Description: Muting arm kit for 4-sensor parallel muting: Pre-assembled and pre-adjusted muting arm kit for M4000 device profile mounting and for device columns with external mounting grooves, Scope of delivery: 2 x active muting arm, 4 x GL6G-P1211 pre-assembled in a fixed position and M12 angle connector including 2 m cable, 2 x passive muting arm, 4 x P250 reflector pre-assembled in a fixed position