Q: Do I need any special tools for installing the R-3D2 Flex-Mount Voltage Indicator?

A: No, standard tools will suffice. To install Flex-Mount Voltage Indicator, simply tighten the hex nut until the knurled round base seats against the mounting surface so the O-ring is compressed 10 in-lbs. If the housing can still be manually rotated, increase torque to 15 to 30 in-lbs to restrict rotational movement. Do not overtighten.