Perform electric and voltage testing using the INGCO Test Pencil Screwdriver. The screwdriver has a compact and lightweight design that can be kept inside your pocket. This screwdriver is made with top-quality material that ensures durable use. It has a digital display so that you can check the metrics instantly. The screwdriver has an ergonomic design that can be held easily for usage. You can use this tool to conduct voltage and induction testing. The test screwdriver has three buttons that help you to use it conveniently.