Electronic thermostat with 4 or 8 stages, 230VAC, IP65, type I4D - I4D/02/001 , DBI4D/02/001 , I4D/02/002 , DBI4D/02/002 , I4D/02/003 , DBI4D/02/003 , I4D/02/004 , DBI4D/02/004, IT Industrie Technik