No profession is small as long as you enjoy it and keep pushing yourself to become a better version of yourself regularly. As an electrician, it’s your job to provide high-quality services to all your clients so that whenever they face any problem related to circuit or electricity in their homes, you are the first person in their contact list they want to call. For this, you need good quality devices for leakage current test and other issues.
Make sure you buy these devices as and when you have time. The sooner you upgrade yourself, the better results you will get in the future.