Sumitron exports supplies soldering testers. Fg-101 is one of the model of this soldering tester which is manufactured by hakko corporation, japan. Some important features of this tester are: easy and accurate to measure the tip temperature, leak voltage and ground resistance of soldering irons. The soldering irons can be controlled based on the mil-hdbk-263bp standard. These can also be controlled based on the ipc j-std. These soldering testers are best suited for lead-free solder. When the max-hold button is pressed, maximum value is displayed. Leak voltage and ground resistance can be easily measured.