Item Name: Accessory DC12-24V 72W T12-TR Electric Soldering Iron Adjustable Temperature. Size: as picture showsType: Electric Soldering IronModel: T12100% brand new and high qualityTemperature Range: 150-450 degreesScreen: OLEDInput Voltage: 12-24V (power not included)Menu instructions:Press the knob to enter menu, it will shows 7 options: ACT: calibration ,HSL: brightness ,DMH: sleep ,LED: always on display ,LVF: power ,LAG: language ,RTN: return ACT: calibrationInsert the T12 tip to handle and power on, set the temperature at 300, until the temperature in "real-time temperature" is stably display at 300, at this time, use a temperature measuring instrument to measure the temperature of T12 tip and record it. such as the measuring temperature is 350, then the calibration value is 50. Calculation formula: calibration value=measuring temperature - setting temperature (Note: Before calibration, the value after calibration must be set to 0) HSL: brightnessbrightness adjustable range is 2-100 , 2 is darkest, 100 is the brightest DMH: sleepwhen screen is "DMH ON 5" ,It means that if the operator does not use the soldering iron for 5 seconds (automatically detect the use status of the soldering iron), the soldering iron will stop heating, and it will start heating again after picking it up.when screen is "DMH OFF",It means that the soldering iron will always be in working
