Digital Controller 1.Single line 4 digit LED display ... 4.Demcal point floating. DM series Digital Sensor Indicator/Controller--2011 Features:1) Application with various sensor ... up to 2 lines relay / OC alarm output,high/low/interval alarm modes for option5) Aux.power: ... thousands of different models of products, including Temperature Controller, Digital Adjustor,thermocouple (TC and RTD), Panel Meter, ...