JKH-D1 intelligent mono-phase silicon-controlled phase-shift trigger/voltage regulator applies micro processor thereby it can input standard current and voltage in various ways.The input range can be free set.It is suitable for heating components as silicon kryptol,silico-molybdic rod,etc.It also has soft start function and can be free set as well. It can exchange without interference both by and and automatically;dual 4-digit of LED + light rod display, simple connection and cooperation, no sequence is required. JKH-D1 Intelligent Mono-phase Silicon-controlled Phase-shift Trigger/voltage Regulator carries upper limit alarm and lower limit alarm output with RS232/RS485 communication. Homepage: .cn/indexe.html