The Enduro Pig Popper is an intrusive pig signal that is manually reset once it has been tripped by a pig. The Enduro Pig Popper is available in several different options. Manual Visual alert, Electrical alert and Electrical/Manual Visual alert. Extensions are available in one foot increments for buried pipe locations. All units are also available in a lighted version. The Enduro Pig Popper is designed to be fitted on most existing 2" fittings.