The Kovix KTR‑18 Model 4 is a rugged trailer coupling lock made from high-grade 304 stainless steel, featuring an 18 mm locking pin with an anti-cutting sleeve and strong resistance to impact, drilling, and corrosion. It includes a built-in 120 dB motion-sensing alarm (with an optional on/off function) that emits a loud siren for about 10 seconds when tampered with, deterring theft attempts. Weatherproof to IP67 standards and powered by a long-life 3V lithium battery, the KTR‑18 fits standard 50 mm ball hitches as well as popular off-road couplings like DO35, DO45, and Treg-style hitches.
This item comes with a 30 day warranty (EXCLUDING the battery.) with an optional 120 day purchase protection plan that can be purchased for an additional 10% for extra cover and peace of mind.