CSA 403-AP-M High-Resistance Visible Magnetic Contact for intrusion alarm systems, ideal for protecting doors and windows with frames made of any material. Featuring a brown metal alloy housing, it is equipped with a NC reed contact with proximity magnet, 4-wire connection (2 contact + 2 tamper), and a tamper loop. Thanks to its IP65 protection and high mechanical resistance, it guarantees security and reliability in detecting openings. Eaton-CSA