We are the leading manufacture of instruments in northern India.we have requirement of (PID) controllers.SIZE 48*48mmsensor input j/k/pt100output required relay (contact rating is 5 amp@230vac)four digit dual display for sv and pv.qty required initally 1~5 pcs for trial later 1000pcs.so please give us your best price with terms and condition.we are waiting for your valuable offer.Thanks with regards