... ,Standby 2.Disply:C or F 3.Thermocouple reverse protect 10-zone Hot Runner Temperature Controller FeaturesIntegrated construction permits easy disassembly ... signals are connected reliably.There are 2,4,6,8,10,12,24 zones for customers to select.Specification Supply VoltageAC85V ... ±0.25%Temperature Setting Range0°C~400°C(0°F~842°F)Temperature Control Accuracy±0.25%Output Load Capacity20A, 50W ...