Suitable for long and short welding head, with the highest temperature of 450/842 Working power supply: support PD3.0, QC2.O, DC12V-25V, 3S-6S batteries 0.91 inch display Built-in buzzer to remind you that it automatically heat up when powered on, and it can be turned on and off at Intelligent temperature control algorithm, which supports temperature compensation and temperature self-calibration The shell is made of transparent, high-temperature and fire- PC environmental protection materials. The sensitivity can be set to reject the interference of environmental factors. Support / switching. Low voltage protection, high temperature and high pressure alarm, safe and reliable Support Chinese and English display switching and firmware upgrade. Colour:As Shown Material:Plastic Package Contents: 1 * soldering iron 1 * accessory Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.