supply of new magnet switch for boom lock, magnet proximity switch in robust al die cast body with dual contacts and 2 magnets for actuation for heidz make electrical lifting barrier at various interlocked level crossing gates. make h.e.p.l. or equivalent.new magnet switch for boom lock, magnet proximity switch in robust al die cast body with dual contacts and 2 magnets for actuation for heidz make electrical lifting barrier at various interlocked level crossing gates. make h.e.p.l. or equivalent.,new magnet switch for boom lock, magnet proximity switch in robust al die cast body with dual contacts and 2 magnets for actuation for heidz make electrical lifting barrier at various interlocked lev el crossing gates. make h.e.p.l. or equivalent. [ warranty period: 12 months after the date of delivery ] ]