The 939D+ comes with adjustable temperature from 392~896°F, Precision PID Temperature Stabilization, Real-Time Digital Display, and °C/°F Conversion function. This classic station is also equipped with a stand-alone soldering iron holder, brass wool tip cleaner with rosin (YIHUA Exclusive Formula), and cleaning sponge. Our customers use the 939D+ for professional hand soldering, industrial/manufacturing/assembly lines, computer/laptop/mobile phone repairs, DIY electronic projects, electric music instrument-building, auto repairs, Arduino projects, RC cars/jets projects, game console repairs, and other fields of applications. In the box 1 x 939D+ Digital Soldering Station 1 x 907F Detachable Soldering Iron 1 x Metallic Iron Holder 1 x Premium Brass Tip Cleaner (with Rosin Flux) 1 x Cleaning Sponge 5 x Extra Quality Iron Tips (SGS Certified) 1 x Pair of ESD-Safe Tweezers 1 x Tube of Premium Solder (Lead-Free) Specifications: Voltage: 110-127V AC 60Hz Temperature Range: 392~896°F Weight:4.71 lbs ±10% Rated Power22W Max. Power:120W Operating Temperature 32~104℉ / 0~40℃ Dimensions: L5.4" x W4.4" x H3.6" ±0.2 inches Display: LED Nixie Tip to Ground Resistance:＜2 ohms Storage Temperature: -4~176℉ / -20~80℃ Storage humidity:35％~45％. CAUTION: when using the brass wool tip cleaner (rosin-inside), ensure there is adequate ventilation, DO NOT inhale the fume generated or consume the solid-state rosin, DO NOT allow your skin and eyes to get in direct contact with the rosin.