Dpm instruments offers programmable pid controller. Specifications: display - 2 x 4 digits [9999] 7 segment led display; keypad - membrane; calibration - by software; input type- universal [thermocouple, pt-l00, linear, 0 to l0v dc]; resolution - pt-l00, thermocouple-1°c or o.I°c up to 900°c, 4 to 20 ma - adjustable; accuracy - pt-l00, j/k, 0/4 to 20 ma :to.25%; control o/p relay [5 a rating]/4 to 20 ma/ssr/hi or lo alarm o/p; control action -on/off, time proportional, p, pi, pd, pill; control mode - heat, cool; enclosure - din standard/flameproof aluminum die casting certified by cmrs dhanbad as per is 2148 of group ii a and group ii b; and supply voltage- 230 v ac, 50 hz.