Features: Heat dissipation designed handle will not be too hot to hold for a long time use, handle tail wire design is safer to use. Plug type heating core is more convenient to use and replace. LCD display makes the temperature reading clear at a glance. PCB are plated in both sides for stable performance and security. High technology programming chip, digital calculating constant current function, internal programming temperature correction function for zero error of required temperature. Specifications: Model: 936H Type: Constant temperature Color: Red, Black (Optional) Plug Type: EU Working Voltage: AC240V~200V 50HZ Output Power: 80W (constant temperature work) Breakdown Voltage: >1200V Temperature Range: 180℃~480℃ Temperature Correction: ±4℃ Suitable Iron Tips: Fit for 900 series iron tips Heating Core: 936H Melting Tin Time: 18~20sec. Continuous Working Time: <3.5hr. Length: 19.5cm/7.7in Weight: 181g(approx.) Instruction: Press the "+" button once to increase 1℃; press and hold it to increase temperature continuously. Press the "-" button once to reduce 1℃; press and hold it to reduce temperature continuously. The newly set temperature will be saved after 3 seconds, and iron will keep the temperature for next time powering-on. When "℉" or "℃" symbol flashes, it means the heating core has not reached the set temperature. Temperature Correction: 1. After 90 seconds of powering on, put the soldering tip on a thermometer, and a moderate amount of solder on the soldering tip; make the test point and the soldering tip have good contact (recommended soldering iron temperature is 300 ~ 350℃ for correction) 2. When thermometer displays a stable temperature(about 2 ~ 3 seconds), write down the temperature. 3. Move soldering iron away from thermometer; press the "-" and "+" button at the same time to enter temperature correction interface. 4. Input adjustment quantity. Adjustment quantity= set temperature - measured temperature (see example) 5. Press the "-" and "+" at the same time to exit temperature interface, finished. Example 1, when setting temperature is 320 ℃ while measured temperature is 312 ℃, the correction steps are as follows: a, press the "-" and "+" at the same time to enter temperature correction interface. b, press the "+" button till the LCD displays 8℃. c, press the "-" and "+" at the same time to exit temperature correction interface Example 2, when setting temperature is 320 ℃ while measured temperature is 330 ℃, the correction steps are as follows: a, press the "-" and "+" at the same time to enter temperature correction interface. b, press the "-" button till the LCD displays -10℃. c, press the "-" and "+" at the same time to exit temperature correction interface Note: Please kindly make a note if you need any plug adapter. Package Includes: 1 x Soldering Iron 1、Heat dissipation designed handle will not be too hot to hold for a long time use, handle tail wire design is safer to use. 2、Plug type heating core is more convenient to use and replace. 3、LCD display makes the temperature reading clear at a glance. 4、PCB are plated in both sides for stable performance and security. 5、High technology programming chip, digital calculating constant current function, internal programming temperature correction function for zero error of required temperature.