- Normally closed and close contact - replaces the function of a "normal" door contact. - use in motorhome, caravan and yacht area, wherever no mechanical deep holes can be drilled. - the contact is housed in a closed housing and reacts only to a magnet (same housing) at a distance of 1 to 2 cm. - remove the magnet, the contact switches and then gives e.g.a mass signal to an alarm system. - function like door (mass) contact. - suitable for PEKATRONIC alarm systems - suitable for SNAPPER alarm systems - Ideal extension for Reed contact transmitter Caravan
