... Standby 2.Disply:C or F 3.Thermocouple reverse protect 10-zone Hot Runner Temperature Controller FeaturesIntegrated construction permits easy ... signals are connected reliably.There are 2,4,6,8,10,12,24 zones for customers to select.Specification Supply ... thermocouple damaged by mis-connection4.Soft-start mode, avoid the humidity make the heater burn out 10-zone Hot runner temperature controller