Check the listing for details. ST-9003D 90W High Frequency Soldering Station IoT Function ATTEN. Condition: New, Made in China. Listed at 376.03 USD. ST-9003D 90W High Frequency Soldering Station IoT Function ATTEN ST-9003D 90W High Frequency Soldering Station IoT Function ATTEN The ST-9003D is a 90W digital high frequency soldering station with built-in RS-485 communication interface supporting IoT function. The station features an ergonomically designed solder iron and various functions including IR temperature calibration, temperature lock, auto standby, sleep function etc. The ST-9003D features fast temperature recovery and high power making it suitable for industrial and professional applications including use on production lines. Pluggable heater design, easy to replace Temperature lock function IR temperature calibration function Auto-standby, auto-sleep function Password protection function Temperature range: 80~500℃ eBay & Ec.