... K300 Refrigeration Controller 1.-40C~110C,2Probes 2.Relay,Compressor,Defrost,FAN,Alarm 3.DC12V/230VAC,50/60HZ 4. ... in any severe environment. Outputs can multi-control the compressor, defrosting and blower. Easily set parameters. TEH-K300 ... outputs(10A) 250VaPower consumption3 VA MaxControl algorithms optionsFuzzy, compressor protection system,Alarms1 alarm for all errorsWorking temperature-5 to 50 ...