Thermometer FG-100 soldering iron thermometer features: 0.2mm CA sensor can accurately and quickly measure the temperature of the soldering tip, compatible with lead-free solder The tip temperature can be measured at any angle according to the shape of the tip With automatic shutdown function, when the thermometer is not in use for 3 minutes, the power will automatically turn off There is a high temperature function for recording the welding tip. When the MAX HOLD button is pressed, the high temperature record of the welding tip is displayed Battery low battery display and sensor damage display Soldering Iron Tip Thermometer Tip Temperature Tester 0-700 Celsius Tip thermometer providing temperature control of soldering iron tips. design saves your workspace and allows you to carry it around When the button MAX HOLD is pressed, MAX HOLD will be displayed and the highest temperature of Iron will be in the display. MAX HOLD : MAX HOLD is displayed at the lower right of the LCD Operating environment temperature/humidity range : 0 to 40 Celsius, 20 to 90%RH without condensation Environmental conditions Applicable rated pollution degree 2 According to IEC/UL 61010-1 Style:Handheld Display Type:Digital Model Number:FG-100 Usage:Industrial Temperature Sensor Allows you to measure from any direction according to tip shape Auto Shut-Off Function If no measurement operation is performed within 3 minutes, the power will be automatically shut off MAX HOLD Function temperature and clear display Digital temperature display make to read it accurately Size Power supply 006P 9V dry battery Temperature resolution 1 Celsius Temperature measurement range 0 to 700 Celsius Temperature precision 3 Celsius 300 to 600 Celsius 5 Celsius other than above Temperature sensor K CA type thermocouple Display LCD : 3 1/2 digits Besides measured temperatures, display indications include the following: Battery low alarm Burnout alarm colour:blue Material:ABS+ metal size:Product size: about 68*140*38mm Display Size:1.9 Inches & Under Package Contents: 1 x FG-100 Soldering Iron Tip Thermometer 5 x Lead Free Sensor Set When battery low alarm appears, replace the battery. Failure to do so will result in incorrect temperature measurements