The Edco TER surge suppressor directly installs onto electronic circuit wiring terminal screws. This close proximity preserves Edco TER’s response time, clamping level and ground reference by eliminating lead lengths. The Edco TER’s miniature size fits directly inside fire or security panels, CCTV housings and other system electronic enclosures. The Edco TER maximizes surge suppression performance while reducing hardware and installation costs.