Hioki leads the industry in non-contact test and measurement technology that promotes safety on the worksite. The Hioki 3481 is a pen-style, non-contact voltage detector with a bright LED light that promotes safety and work efficiency even in dim worksites. When voltage is detected, the LED lights red along with an audio signal.

Hioki leads the industry in non-contact test and measurement technology that promotes safety on the worksite. The Hioki 3481 is a pen-style, non-contact voltage detector with a bright LED light that promotes safety and work efficiency even in dim worksites. When voltage is detected, the LED lights red along with an audio signal.