Description: PID controllers are proven worldwide and come with alarm relay as a standard facility. The controllers are available in all the sizes (48 x 48) mm, (72 x 72) mm, (48 x 96) mm and (96 x 96) mm and are available readily. All these controllers have very attractive and bright display and are available in various types of control outputs. The full product range is CE, UL and CSA approved. The controllers are known for their best price to performance ratio.