Socket tester with digital display Habotest HT106DHabotest HT106D socket tester The HT106D socket tester is a small but very useful device that will allow you to take better care of the safety in your home. It is equipped with an LED indicator that will provide you with the most important information. Among other things, it will notify you of the lack of grounding, and it also allows you to perform an RCD test. With the HT106D, you can avoid damage to your appliances and prevent other hazards. You